Within the depth-psychology corpus, longing occupies a position markedly distinct from ordinary desire or wanting. The most sustained theoretical treatment appears in McGilchrist, who discriminates longing from purposive wanting on phenomenological grounds: longing is non-volitional, structurally relational, and oriented toward reunion rather than acquisition, its object remaining implicit, often spiritual, always irreducibly Other. This relational quality — a felt connection across unresolved distance — aligns longing with Hillman’s Eros-figure of pothos, the third person of desire, directed toward the unattainable and incommensurable, and thus constitutively beyond capture. Jung’s Symbols of Transformation anchors longing cosmologically, reading the moth’s passionate yearning for the star as the soul’s longing for God, a libidinal movement that is fundamentally transpersonal. Vaughan-Lee, writing from within the Sufi-Jungian axis, treats longing as a divine implanting: the Beloved plants longing in the heart as a navigational instrument pointing the seeker home, even as it brings doubt, pain, and the terror of self-dissolution. The Philokalia registers an Eastern Christian parallel, locating in the intellect an image of the divine Eros as insatiable desire for spiritual knowledge. Hillman’s late work notes how, in old age, longing recurs as nostalgia and yearning toward an irrecoverable past, while Nietzsche’s Zarathustra deploys longing as civilizational symptom — a great longing arising among those who seek the heights. Across these positions, longing is consistently distinguished by its non-instrumental character, its spiritual valence, and its paradoxical structure of intimate separation.