The final Jungian metaphor for imaging psychotherapy does not come from alchemy, medicine, or shamanism, all of which are worthy models but broad rather than specific in scope. Rather, the central myth or story of the Jungian therapeutic relationship is the Greek myth of the "wounded healer." The wounded healer is not just a story, in fact, but a hypothesized archetype that underlies and gives shape to Jungian psychotherapy. It is based on the ancient Greek worship of Asklepios, "founder of medicine" zv74 and god of physicians, as the main god of healing.9 (Just as alchemy in some senses prefigures chemistry, the wounded-healer myth predates modern medicine.)
— David Sedgwick
Sedgwick positions the wounded healer not as metaphor but as archetype — something that underlies and gives shape to the therapeutic relationship rather than merely describing it. The difference matters. A metaphor is chosen; an archetype is encountered. You do not decide to practice from the wounded-healer pattern; you discover, usually uncomfortably, that you already are.
Asklepios carries the weight here because his story refuses the clean separation between healer and patient. He was himself the product of a wound — born from a dead mother, raised by a centaur, eventually destroyed for transgressing the boundary between life and death. The healing power did not come despite these ruptures; it came through them. What Jungian therapy draws from this is a structural claim: the therapist's own suffering is not a liability to be managed before real work can begin, but the very medium of transmission. The wound is not background — it is the instrument.
This is also why Sedgwick reaches past alchemy and shamanism, which are large enough vessels to hold nearly anything. The wounded-healer myth is specific: it names what flows between two people when one has been broken in ways the other recognizes, without either needing to say so plainly.
David Sedgwick·An Introduction to Jungian Psychotherapy: The Therapeutic Relationship·2001