The swan occupies a remarkably dense symbolic position within the depth-psychology corpus, drawing together solar mythology, spiritual aspiration, the anima, alchemical spirit, and the psychology of transformation. Jung traces the word ‘swan’ etymologically to the root sven, cognate with ‘sun’ and ‘sound,’ making the singing bird rising from water a primal image of rebirth and the conquest of death. Von Franz, in her alchemical writings, places the swan explicitly as a symbol of spirit, alongside the eagle, both creatures that mediate between matter and the transcendent. Emma Jung’s treatment of the swan-maiden motif in Norse and Germanic sources—Valkyries who take swan form, maidens whose stolen garments bind them to men—illuminates the anima as an elemental being whose nature is aerial and elusive, belonging to another register of reality. Vaughan-Lee reads the swan in contemporary dream material as an image of the royal, spiritual Self beckoning the soul away from collective noise toward the setting sun of interiority. Ests’s extended deployment of the Ugly Duckling as a psychological myth reframes the swan as the hidden true nature of the exile who cannot recognize herself among incompatible others. Ficino’s natural magic, as examined by Moore, lists the swan among solar objects whose very presence conducts solar spirit into human life. The I Ching tradition, visible in both Huang and Ritsema-Karcher, figures the wild swan as an emblem of spiritual aspiration, orderly progress, conjugal fidelity, and the soul’s long gradual journey. Across all these registers the swan consistently marks threshold states: between worlds, between identities, between the human and the divine.