Resoluteness occupies a pivotal position in the depth-psychology corpus, functioning as far more than a volitional attitude: it is, at its most rigorous articulation, an ontological structure of authentic selfhood. Heidegger’s Being and Time provides the corpus’s densest treatment, defining resoluteness as Dasein’s reticent, anxiety-ready projection upon its ownmost Being-guilty — the existential mode through which the self is fully disclosed to itself and wrested back from the dispersal of das Man. Crucially, resoluteness achieves its full authenticity only as anticipatory resoluteness, held open toward death and thus rendered genuinely transparent. The term does not denote rigidity; Heidegger insists it must remain free to take itself back, responsive to the factical situation while retaining existentiell constancy. A second, entirely distinct deployment of the term appears in the I Ching tradition, where resoluteness names the quality of Hexagram 43 (Kuai / Break-through): the energetic turning of the strong against the weak, a cosmological-ethical principle of decisive advance. Carol Anthony’s reading extends this into the psychology of the ego’s ‘spell of helplessness,’ where resoluteness is the counter-force that breaks self-doubt. These two streams — the ontological-existential and the divinatory-ethical — together reveal resoluteness as a concept bridging authenticity, temporal self-possession, and the practical courage to overcome inner obstruction.