The term ‘witness’ occupies a remarkably multivalent position within the depth-psychology corpus, ranging from its ancient juridical and etymological roots to its function as a spiritual, somatic, and epistemological category. Benveniste traces the Latin superstes — one who ‘stands beyond’ an event, having survived it — as a semantic precursor to the witness as both survivor and testifier, while the arbiter appears as the invisible witness who may become sovereign judge. Corbin elaborates a mystical register, wherein the shahid (witness) of Iranian Sufism functions as theophanic mirror: the soul’s capacity to perceive divine beauty through a heavenly counterpart is itself a testimony of spiritual realization. Frank, working in the phenomenology of illness, insists that the witness of suffering must be bodily — that testimony cannot be abstracted from the flesh that underwent it — and argues for a concentric, contagious quality in witnessing: to receive another’s testimony is to become a witness oneself. Romanyshyn reframes witnessing as a methodological stance in depth-psychological research, demanding a ‘willing suspension of disbelief’ that is more than credulity. Hillman invokes Tertullian’s call for the soul to ‘bear its own witness in its own language,’ linking witnessing to authentic psychological speech. Together, these voices reveal witnessing as simultaneously legal, mystical, somatic, and epistemological — a practice that both constitutes and is constituted by the self’s encounter with what exceeds it.