The term ‘environment’ traverses the depth-psychology corpus along several distinct but intersecting axes. At one pole, Hillman radically dissolves the boundary between psyche and surroundings, arguing through the lens of deep ecology that the environment is not a neutral backdrop but an ensouled, imaginatively nourishing field co-constitutive with the daimon — neither nature nor nurture alone can account for character, because the environment itself participates in soul-making. At another pole, developmental theorists — Winnicott, Schore, and the trauma literature gathered by Lanius — treat the environment as the relational matrix within which the nervous system is organized, dysregulated, or repaired; here ‘facilitating environment’ is a technical term carrying enormous clinical weight. A third axis, represented by Thompson and McGilchrist, situates organism-environment relations within enactive and autopoietic biology: the environment is not pre-given but enacted through structural coupling, rendering the organism-environment distinction perpetually approximate. Easwaran maps the Sanskrit concept of prakriti onto environmental thought, extending ‘environment’ into a spiritual-ethical register. Taken together, the corpus refuses any simple inside/outside binary, insisting instead on reciprocity, co-determination, and the irreducibility of context to mere background.