What is the difference between Jungian sandplay and sand tray therapy?

The two terms are often used interchangeably in clinical conversation, but they name distinct approaches with different theoretical commitments, different stances toward interpretation, and different understandings of what the sand actually does. The confusion is understandable — both descend from the same source — but collapsing them obscures something important about how each method understands the psyche.

A shared origin, a diverging inheritance

Both approaches trace their lineage to Margaret Lowenfeld's World Technique, developed in London in the 1930s: a shallow tray of sand, a collection of miniature figures, and an invitation to build. Jung encountered Lowenfeld's work at a 1937 congress in Paris and recognized in it something he already knew from his own inner life — the healing function of symbolic play. He had built miniature towns and churches with stones as a grown man, working through a crisis of meaning, and he later encouraged his student and colleague Dora Kalff to develop a formal method from Lowenfeld's technique. Kalff traveled to London to study with Lowenfeld, then returned to Zurich and, grounding the work in analytical psychology, coined the term Sandplay — deliberately distinguished from Lowenfeld's more neutral "World Technique." The International Society of Sandplay Therapists was formed in 1982, and the method spread rapidly through Europe, the United States, and especially Asia, where the professional societies in Japan, Korea, and China became among the largest in psychotherapy worldwide (Roesler, 2019).

Sandtray therapy, by contrast, developed as a broader, more eclectic category. It draws on Lowenfeld's technique but is not bound to Jungian or psychodynamic theory; practitioners bring cognitive-behavioral, humanistic, narrative, and other orientations to the same physical materials.

The decisive difference: interpretation and the therapist's stance

The most consequential distinction is not theoretical but procedural. Jungian sandplay, as Kalff established it, is explicitly nondirective and noninterpretive during the session itself. The therapist creates what Kalff called "a free and protected space" — an atmosphere of empathic witness — and does not intervene in the client's process with suggestions, directives, or interpretations while the tray is being built. The assumption is that the psyche, given the right conditions, will produce precisely what it needs: the compensatory function Jung identified in dreams operates here through the hands and the sand. As Wiersma and colleagues (2022) put it, sandplay "emphasizes self-directed, nonverbal, hands-on expressive work without interference on the part of the therapist."

Sandtray therapy, by contrast, may include directives from the therapist, suggestions about what to place or where, and active interpretation during the session. Some sandtray approaches are explicitly cognitive, using the tray as a structured problem-solving space. The nondirective, client-centered variant of sandtray therapy comes closest to sandplay in its stance, but even there the theoretical grounding differs.

What the sand is doing

In Jungian sandplay, the sand is not merely a medium for expression — it is understood as a site where unconscious material becomes tangible. Chodorow (1997) notes that sandplay is itself a form of active imagination: the unconscious contents are created by means of the hands, not merely represented after the fact. This is a subtle but important distinction from other expressive modalities. In painting or drawing, an image arises in the mind's eye and is then given form; in sandplay, the hands move in the sand and the image emerges through the movement itself. Tozzi (2017) describes patients working with eyes closed, attending to the sensory contact of palms on sand, accessing what she calls "pre-lingual and pre-symbolic" layers of biography — territory that verbal therapy cannot easily reach.

Sandplay activates multiple brain systems that regulate sensory input and the stress response system and provides the conditions necessary for healing at a preverbal, body-based level.

This neurological framing points toward something the Jungian tradition has always claimed phenomenologically: that the sand tray reaches material that words cannot organize, and that the organizing happens in the making, not in the subsequent interpretation.

The question of interpretation

Kalff's classical position was that interpretation should be used only very cautiously, and many Jungian sandplay practitioners hold that the tray should not be interpreted at all during the session — the therapist witnesses, the client builds, and meaning emerges in its own time. Roesler (2019) notes that within Jungian analysis a spectrum exists, from a fully discursive style in which the sandplay image becomes a starting point for verbal exploration, to a completely nonverbal approach in which the therapist functions purely as witness and container. Sandtray therapy, by its nature, tends toward the interpretive and directive end of that spectrum.

The practical implication is significant for trauma work in particular. Kalsched (1996) argues that expressive arts therapies — sandplay among them — must be aligned with the psyche's natural integrative linking of affect and image, and that premature interpretation can disrupt a process that needs to remain nonverbal. The sand tray and the dream are, for him, equivalent fields in which the self-care system of the traumatized psyche can begin to reorganize without being forced into language before it is ready.

Dora Kalff — portrait of the founder of Jungian sandplay therapy
Active imagination — the broader method of which sandplay is one form
Individuation — the process sandplay is understood to serve
Donald Kalsched — on trauma, the self-care system, and the role of expressive work

Sources Cited

Roesler, Christian, 2019, Sandplay Therapy: An Overview of Theory, Applications and Evidence Base
Wiersma, Jacquelyn K. et al., 2022, A Meta-Analysis of Sandplay Therapy Treatment Outcomes
Chodorow, Joan, 1997, Jung on Active Imagination
Tozzi, Chiara, 2017, Active Imagination in Theory, Practice and Training
Kalsched, Donald, 1996, The Inner World of Trauma