Shadow Work

Jung's concept of the shadow

C. G. Jung's book Aion was first published in German in 1951 and appears in English as volume 9, part 2, of the Collected Works, edited and translated by Gerhard Adler and R. F. C. Hull and published by Princeton University Press (copyright 1969). The publisher says its opening sections set out the ego, the shadow and the anima and animus. The International Association for Analytical Psychology (IAAP) abstract of the chapter on the shadow describes it as the most accessible of the archetypes, made up of dark, emotional and primitive elements of personality that resist ethical control.

A 2024 critical article by Daniel Boscaljon summarises Jung's account as one in which the shadow is the part of the personal unconscious holding what a person wishes to repress. It quotes Jung's statement that the meeting with oneself is at first the meeting with one's own shadow (Collected Works 9i, paragraph 45), and attributes to him three ways of relating to it: possession, projection and passage. These are one author's readings of Jung and were not checked here against the primary texts.

Development within analytical psychology

Jung's concept is a theoretical idea within analytical psychology and not a technique with a fixed procedure. A 2023 edited volume by Jungian authors, Jung's Shadow Concept (Routledge, edited by Christopher Perry and Rupert Tower), shows how later writers have extended it. Its publisher lists chapters on shadow development in childhood, ageing, literature, politics, ecology, large-group anxiety, technology and religious perspectives on evil, and a closing chapter on approaches to shadow integration. The publisher text says the concept emerged from Jung's personal confrontation with his own unconscious. That is a community-held account, and the sources reviewed do not test it.

Adaptation in popular writing

The sources reviewed do not establish when or by whom the phrase 'shadow work' was first used. One documented example of popular adaptation is Meeting the Shadow, an anthology edited by Connie Zweig and Jeremiah Abrams and published by Tarcher in Los Angeles in 1991. The publisher describes it as a collection of 65 essays, including a contribution by Jung, and says it offers practical methods for what it calls shadow work. It is a single example and is not shown here to be the origin of the term or of any method.

The shadow in Jungian usage

In Jungian usage 'the shadow' names a component of personality: material a person disowns, which on Boscaljon's reading of Jung can be projected onto other people. In the IAAP abstract the shadow is contrasted with the anima and animus, whose projections the abstract describes as harder to recognise because they draw on the collective unconscious and not on personal material. The term is therefore a label inside one theoretical system and not a neutral description of everyday behaviour.

Shadow work as a later label

'Shadow work' adds the word 'work' to Jung's noun. The 1991 anthology's publisher copy and Boscaljon's 2024 article both use the phrase for deliberate engagement with shadow material, but neither supplies a standard definition, and the sources reviewed identify no governing body or agreed curriculum for it. Readers may therefore meet the label applied to quite different activities, from reading and reflection to work conducted inside psychotherapy.

Analysis, psychotherapy and self-directed use

Three things are easily conflated. Jungian analysis or analytical psychotherapy is treatment delivered by a trained analyst or psychotherapist; Roesler's reviews call it Jungian psychotherapy. The shadow is one theme within that work and not its name: Roesler's 2013 review mentions a process study of shadow symbols, while its outcome studies concern therapy as a whole. Self-directed shadow work, in contrast, involves no therapist, and the sources reviewed describe no training or ethics framework for it.

Other uses of the phrase

The phrase also appears outside Jungian psychology. A 2021 qualitative study of 24 department chairs in a US medical school lists 'the rise of shadow work' among system-level stressors affecting faculty wellness. The abstract does not define the phrase, and nothing in it connects it to Jung's shadow, so the two uses should not be assumed to be related.

Analyst-led work

Where the shadow is worked with inside Jungian psychotherapy, it forms part of an ongoing treatment relationship. Roesler's 2013 review of outcome studies from Germany and Switzerland reports an average of about 90 sessions across the studies it summarises. In a 2025 study at a German training institute, 36 therapists who were candidates in Jungian training treated patients under mandatory supervision after every four sessions, and recorded treatment lengths ranged from 18 to 306 sessions, with a mean of 70.63 where session data were available.

These figures describe psychotherapy as a whole. Neither source presents a specific shadow-work protocol, and the 2025 study does not mention the shadow at all, so the treatment lengths cannot be taken as a guide to how long shadow-focused work lasts.

Self-directed and facilitator-led work

The sources reviewed do not document a standard format, length or sequence of exercises for self-directed or facilitator-led shadow work. The publisher of the 1991 anthology says it contains practical methods, but the methods themselves were not reviewed, so no procedure is described here. A person considering a facilitator can ask about the facilitator's training, supervision, confidentiality arrangements and how distress during a session is handled.

Claims in popular and publisher material

The publisher's description of the 1991 anthology says its methods help readers develop a conscious relationship with darker impulses, reduce emotional negativity, release shame, foster self-acceptance and improve relationships. These are promotional claims by a publisher about a book. They are not findings, and the sources reviewed contain no test of them.

Uses within Jungian psychotherapy

People attending Jungian psychotherapy are treated for a range of conditions and not for shadow material as such. In the 2025 training-institute study, diagnoses recorded for 60 of 104 participants were mostly mood disorders, followed by anxiety and stress-related disorders, and outcomes were measured as symptoms, personality structure and quality of life. These are reasons for seeking psychotherapy in general and should not be read as uses of shadow work.

Interpretive uses beyond the individual

Jungian authors also apply the shadow to groups and societies. The 2023 Perry and Tower volume includes chapters on politics, ecology, organisational and large-group anxiety, technology and religious fundamentalism. These are interpretive applications of a concept and not interventions that have been tested.

Searches run and what they found

For this entry, PubMed was searched for 'shadow work' or Jungian shadow combined with intervention, which returned seven records, none evaluating a shadow-work practice. A PubMed search for Jungian or analytical psychology combined with randomised controlled trial returned four records, none a randomised trial of Jungian psychotherapy. Searches of a broader academic index for shadow work and for Jungian psychotherapy found no controlled study of shadow work as a defined practice. This is a limited search and does not exclude studies in other databases, theses or books.

Jungian psychotherapy outcome studies

Roesler's 2013 review summarises prospective naturalistic and retrospective studies, mainly from Germany and Switzerland, including a Zurich study of 37 patients and 26 therapists and a Berlin study in which 111 of 353 documented cases took part. It reports improvement on symptoms, interpersonal problems and personality structure, stable for up to six years in some studies. The review also states that no randomised controlled trials exist, that analysts were reluctant to take part in research, and that 10 to 20 per cent of patients showed no improvement in some studies.

A 2025 pre-post study of 104 patients treated by supervised trainees reported reductions in depression, anxiety and obsessive-compulsive symptoms, with effect sizes from d = 0.555 to 1.174, and no significant change in eating disorder symptoms. It had no control group, relied on self-report, lacked session data for 44 participants and did not systematically record dropout. A 2021 overview concludes that there is some empirical support but a strong need for randomised trials.

Experimental work on disowned traits

A 2000 paper in the Journal of Personality and Social Psychology reported four experiments in which people given false feedback that they were high in repressed anger, or insulted, distanced themselves from a violent person, and verbalising their emotions removed the effect in the insult experiments. The study tested a proposition related to disowned characteristics in a laboratory setting. It did not test shadow work, an intervention or Jung's theory as a whole, and its results should not be taken as evidence for any practice.

Critique of Jung's formulations

Boscaljon argues that Jung's writing on the shadow carried the colonialist and racist assumptions of his time. The article quotes passages in which Jung associates the shadow with 'primitive' emotional life and with African people, and argues that this made the concept easy to read as a hierarchy. It also argues for a revised, more participatory understanding of the shadow. This is one scholar's interpretation and not a settled view, but it is a reason to read Jung's own texts critically and not as neutral description.

Limits of the research base

The outcome studies reviewed concern Jungian psychotherapy and not shadow work. They lack randomisation and, in the 2025 study, a comparison group, and they were carried out largely by researchers linked to Jungian training institutes; the 2025 authors declared no conflicts of interest. Findings for symptoms in treated patients cannot be applied to self-directed exercises, to coaching or to people not in treatment.

What is known about harms

No source reviewed examined harms of self-directed or facilitator-led shadow work. For psychotherapy generally, a 2023 qualitative meta-analysis of 51 studies grouped clients' negative experiences into four clusters: therapist misbehaviour, hindering aspects of the relationship, poor treatment fit and negative impacts of treatment. It was not specific to Jungian work or to shadow material. Roesler's 2013 review reports no improvement for a minority of patients in some Jungian studies.

Care boundaries

As a general care boundary and not a finding of the sources reviewed, a reflective practice that focuses on painful or disowned material is not a substitute for assessment or treatment of depression, trauma-related symptoms or thoughts of self-harm. A person who feels worse, or who is in distress, can stop and speak to a doctor or qualified mental health professional, or use local emergency services in a crisis.

Training, ethics and regulation

The IAAP states that its certification of training status is confirmed by a vote of delegates at its triennial congress, and its list of certified training societies includes five in the United Kingdom. Ireland does not appear on that list, which is an inference from the page. The IAAP also publishes a code of ethics for individual members and has an ethics committee that processes complaints. These pages concern analysts trained within IAAP groups. The sources reviewed identify no equivalent training standard or complaints process for people who offer shadow work without such training, and statutory regulation in particular countries was not checked.

Roesler's 2025 paper describes Jungian psychotherapy as an established treatment in modern healthcare systems with insurance coverage in some countries, which this entry did not verify jurisdiction by jurisdiction.