Within the depth-psychology corpus, ‘Wood’ operates across several registers that rarely collapse into one another but share a common concern with matter as the bearer of psychic meaning. At the etymological root, Indo-European *dreu-/*dru- links ‘wood’ and ‘tree’ in a semantic cluster extending through Greek xylon and hyle, Gothic triu, and Sanskrit dāru — the linguistic substrate reminding us that wood, tree, and material substance were once a single undifferentiated concept. Hillman’s alchemical psychology recruits this substrate most forcefully: wood functions there as combustible prima materia, the mundane substrate that fire refines into spiritual essence, and as the sylvan vessel from which spiritus silvestris bursts forth. The Taoist I Ching tradition (Liu I-ming / Wilhelm) develops a cognate symbolism in which wood-trigrams (Sun, Chên) encode penetration and movement, and in which ‘mundane wood’ of human temperament must be burned away to reveal ‘celestial wood’ of true nature. Von Franz reads the gathering or wasting of wood in fairy tales as a moral economy of psychic energy — to burn too much is a transgression with destructive consequences. Zhuangzi’s carpenter encountering the sacred oak introduces the paradox of usefulness versus uselessness that pervades the Taoist contribution. Simondon approaches wood from a philosophy of individuation, reading its grain, fiber, and topology as carriers of ‘implicit form’ resistant to geometrical abstraction. Together these voices converge on a single problematic: wood is the archetype of structured yet living matter, a medium in which psyche, cosmos, and craft intersect.