Kurt Lewin and Donald Kalsched offer psychotherapists two very different ways of thinking about groups. Lewin helps us see the group as a dynamic field of forces, roles, norms, pressures and possibilities. Kalsched helps us see the inner world of trauma: the protective systems, dissociated parts and vulnerable self-states that may enter that field.

The contrast is clinically useful. Lewin asks us to look between people. Kalsched asks us to listen within the person. In therapeutic groups, both perspectives are needed because group process is never only social and never only intrapsychic. A group member’s silence, attack, compliance, rescue or withdrawal may be shaped by their trauma history, by the current group field, and by the interaction between the two.

Lewin is usually associated with field theory, group dynamics, action research, democratic leadership and social change. His work helped establish the idea that groups have a life of their own and that behaviour must be understood in context. Kalsched, writing from a Jungian and psychoanalytic tradition, attends to trauma, dissociation and the archetypal defences that protect the vulnerable centre of the self.

For group psychotherapists, the two thinkers can be read together as offering complementary forms of attention: Lewin maps the field; Kalsched listens for the defended soul within it.

Lewin and the group as a field

Lewin’s field theory is often summarised by the formula:

B = f(P, E)

Behaviour is a function of the person and the environment. This may look simple, but it represents a major shift away from thinking of behaviour as something located solely inside the individual. For Lewin, the person acts within a field: a structured psychological and social situation made up of goals, tensions, barriers, norms, relationships and forces.

In a therapeutic group, this means that a member’s behaviour should not be understood in isolation. Silence, anger, humour, compliance, withdrawal, caretaking or intellectualisation may all be personal, but they are also field phenomena. They happen in a particular group, at a particular moment, in relation to particular histories, expectations, anxieties and unspoken rules.

Lewin’s work therefore invites psychotherapists to ask field questions.

What is exerting pressure in the group? Who is central and who is peripheral? What kind of speech is permitted? What is avoided? What roles are forming? What norms are becoming established? What does the group reward, and what does it subtly punish? Where is movement blocked?

Such questions are familiar to group therapists, but Lewin gives them a conceptual grounding. He reminds us that behaviour is always situated.

Group dynamics and emergent process

Lewin’s work helped develop the study of group dynamics: the idea that groups are not merely collections of individuals, but living systems with their own patterns of influence, tension and change.

This is immediately recognisable in psychotherapy groups. A group may become cautious, compliant, attacking, dependent, avoidant, lively, competitive, intimate or thoughtful. These qualities cannot be fully explained by one member’s personality. They emerge from the field.

A member who becomes “the difficult one” may indeed be expressing something personal, but they may also be carrying a tension that belongs to the group. The person who always rescues may be helping the group avoid helplessness. The person who attacks may give form to aggression that others disown. The quiet member may express the group’s fear of speaking. The intellectualising member may stabilise a group that is frightened of affect.

Lewin’s contribution is to help the therapist resist over-individualising these phenomena. Rather than asking only, “What is wrong with this member?” the therapist can ask, “What is the function of this behaviour in the group field?”

This does not remove personal responsibility. It places responsibility in context.

Kalsched and the inner trauma system

Kalsched’s work moves in a different direction. In The Inner World of Trauma and Trauma and the Soul, he describes how the psyche may develop powerful protective systems around early injury. These systems defend the vulnerable self, but may later become harsh, isolating or persecutory.

Where Lewin attends to the field between people, Kalsched attends to the inner world that enters the field. He helps us understand why ordinary group events may carry traumatic intensity. A pause may feel like abandonment. A disagreement may feel annihilating. A warm response may feel intrusive. A facilitator’s attention may feel exposing. Another member’s vulnerability may evoke rescue, envy, irritation or dissociation.

From a Kalschedian perspective, such responses are not simply distortions. They may be the activation of a survival system organised around earlier relational danger. The person may long for connection while also being defended against the very dependency, hope or need that connection awakens.

For group therapists, this is an important counterbalance to Lewin. Field analysis can show how the group is shaping behaviour, but it may not fully explain why a particular moment carries such psychic force for one member. Kalsched helps us listen for the inner trauma drama that may be constellated by the group.

Two readings of one group moment

Imagine a member of a therapy group becomes silent after another member offers a thoughtful and warm response.

A Lewinian reading might ask what has happened in the group field. Did the group move too quickly towards intimacy? Has this member been positioned as vulnerable? Is there pressure to accept care? Are other members now anxious about having done something wrong? What is the silence doing to the group? Does it slow the group, protect it, accuse it, or invite pursuit?

A Kalschedian reading might ask what has happened in the member’s inner world. Did kindness activate a defended longing? Did the self-care system move in to protect against dependency? Did being seen feel dangerous? Did hope become intolerable? Did the vulnerable self retreat behind a dissociative or distancing defence?

Both readings may be true. The silence belongs to the field and to the inner world. It is interpersonal and intrapsychic. It happens between people, while also opening onto the member’s internal organisation of survival.

This is the value of reading Lewin and Kalsched together. Lewin prevents us from collapsing group process into individual pathology. Kalsched prevents us from treating group behaviour as merely social or behavioural.

The visible group and the hidden group

Lewin is especially useful for understanding the visible group: roles, leadership, norms, influence, conflict, belonging, decision-making and change. His work helps psychotherapists think about the structure and movement of the group as a whole.

Kalsched is especially useful for understanding the hidden group: the internal figures, dissociated parts, vulnerable self-states and defensive organisations that may be activated beneath the surface.

In therapeutic groups, both groups are present. There is the actual group: the members, the facilitator, the chairs, the time boundary, the spoken words and the silences. There is also the symbolic group: the family, the classroom, the excluded child, the shaming parent, the hostile peer group, the absent witness, the dangerous authority, the longed-for rescuer.

Lewin helps us observe how the actual group functions. Kalsched helps us understand why the symbolic group may feel more real than the present moment.

Leadership, authority and the facilitator’s place in the field

Lewin’s research on leadership styles is often discussed in terms of authoritarian, democratic and laissez-faire group climates. While therapy groups are not the same as experimental leadership groups, the question of authority is central to clinical group work.

The facilitator is never outside the field. Their timing, silence, anxiety, structure, warmth, absence, challenge and restraint all shape what becomes possible. A group may become dependent on the facilitator, rebel against them, idealise them, test them, or use them as a container for disowned authority.

Lewin helps us ask how leadership shapes the group climate. How much structure is needed? How are boundaries held? How is conflict facilitated? How is participation invited without coercion? How are quieter members protected without being rescued? How are more forceful members challenged without being shamed?

Kalsched adds that authority may carry traumatic and symbolic meanings. For some members, the facilitator may be experienced as rescuer, persecutor, abandoning object, ideal witness, intrusive parent or unreliable protector. The member may respond not only to what the facilitator does, but to what the facilitator represents within the inner world.

This makes group facilitation clinically delicate. Too much authority may repeat domination. Too little authority may repeat abandonment. Over-rescue may confirm fragility. Excessive neutrality may feel like absence. The therapist needs both Lewinian awareness of the group climate and Kalschedian sensitivity to the inner meanings of authority.

Belonging, marginality and social field

Lewin’s interest in groups was not abstract. His work was shaped by questions of minority experience, belonging, social conflict and democratic life. This is important for contemporary psychotherapy. Groups are never socially neutral. They are shaped by class, race, gender, sexuality, neurodivergence, disability, religion, culture, language, institutional power and social location.

A Lewinian approach asks how belonging is organised in the group field. Who feels central? Who feels peripheral? Whose experiences are recognised quickly? Whose are misunderstood? What norms are assumed? What forms of difference are metabolised, and what forms become awkward or unspeakable?

Kalsched’s work adds that experiences of exclusion may resonate with early trauma and internal self-protection. A present group moment may activate an old state of shame, exile or defensive retreat. The member may not only feel marginalised now; they may re-enter a whole inner world organised around not belonging.

Both perspectives are needed. It would be inadequate to reduce marginality to personal trauma, and equally inadequate to ignore the internal world that may be activated by group exclusion. The therapist must hold both the social field and the psychic field.

Conflict and change

Lewin was interested in change: how behaviour shifts, how norms are altered, and how groups can move from one pattern to another. Conflict, in this perspective, may indicate competing forces in the field. It may show where movement is blocked or where a group is trying to reorganise itself.

In therapeutic groups, conflict can be destructive if unmanaged, but it can also become a route into truth. It may reveal hidden norms, disowned affect, power relations, unmet needs or avoided differences.

Kalsched helps us understand why conflict can feel psychically dangerous. For some members, conflict is not experienced as ordinary disagreement. It may feel like rupture, annihilation, humiliation or abandonment. Protective systems may activate quickly through counterattack, withdrawal, appeasement, dissociation, intellectualisation or collapse.

A group informed by both Lewin and Kalsched would neither avoid conflict nor force it. It would treat conflict as meaningful field material while also respecting the protective systems it may mobilise. The clinical question is not only, “What is the conflict about?” but also, “What does this conflict threaten, and for whom?”

The risks of imbalance

If a therapist relies only on Lewin, they may become skilled at reading group process but miss the depth of traumatic meaning carried by individual members. A silence may be understood as a field position, but not as a dissociative retreat. An attack may be seen as group aggression, but not as a desperate defence against dependency.

If a therapist relies only on Kalsched, they may become skilled at recognising inner protective systems but miss the way the group itself shapes the behaviour. A member’s withdrawal may be understood as trauma defence, while the group norms that made vulnerability unsafe remain unexamined. A member’s anger may be psychologised while real power dynamics are ignored.

The integration matters. Group therapy requires binocular vision: one eye on the relational field, one eye on the inner world.

Clinical implications for psychotherapists

A Lewin-Kalsched reading of groups suggests several practical orientations.

First, attend to the field before locating difficulty inside one member. Ask what the group is organising, avoiding or requiring.

Second, attend to the individual before reducing everything to group process. Ask what inner protective systems may be activated by the present field.

Third, track roles as dynamic rather than fixed. A member may carry a role for the group, but that role may also resonate with their own trauma history.

Fourth, treat the facilitator’s authority as active clinical material. Leadership shapes the field and may also constellate powerful internal figures.

Fifth, understand belonging as both social and psychic. Inclusion requires attention to real differences and to the inner worlds activated by recognition, exclusion, envy, dependency and shame.

Finally, keep interpretation close to experience. Lewin and Kalsched both offer powerful theoretical languages, but in the therapy room the work must remain collaborative, tentative and grounded in what members can recognise.

Conclusion

Lewin and Kalsched come from different intellectual traditions, yet together they offer a rich framework for therapeutic group work. Lewin helps psychotherapists map the visible dynamics of the group field: roles, norms, pressures, leadership, belonging and change. Kalsched helps psychotherapists listen for the hidden inner world of trauma: the vulnerable self, the protective system, dissociation, longing and fear of contact.

A therapeutic group is both a social field and a psychic field. It contains actual relationships and symbolic relationships, present-moment interactions and old internal dramas. Members meet one another, but they also meet the histories and defences that shape how contact is experienced.

To work well with groups, psychotherapists need both kinds of attention. We need to ask what is happening between people, and we need to ask what is being protected within the person. Lewin helps us see the forces moving through the group. Kalsched helps us hear the defended life beneath them.

References

Kalsched, D. (1996) The Inner World of Trauma: Archetypal Defences of the Personal Spirit. London: Routledge. Available at: https://doi.org/10.4324/9781315788081

Kalsched, D. (2013) Trauma and the Soul: A Psycho-Spiritual Approach to Human Development and Its Interruption. London: Routledge.

Lewin, K. (1947a) ‘Frontiers in Group Dynamics: Concept, Method and Reality in Social Science; Social Equilibria and Social Change’, Human Relations, 1(1), pp. 5-41. Available at: https://doi.org/10.1177/001872674700100103

Lewin, K. (1947b) ‘Frontiers in Group Dynamics: Channels of Group Life; Social Planning and Action Research’, Human Relations, 1(2), pp. 143-153. Available at: https://doi.org/10.1177/001872674700100201

Lewin, K. (1997) Resolving Social Conflicts and Field Theory in Social Science. Washington, DC: American Psychological Association. Available at: https://doi.org/10.1037/10269-000