The feeling function occupies a singular and contested position within the depth-psychology corpus. Jung established it as one of four basic psychological functions — alongside thinking, sensation, and intuition — defining it as a rational process that evaluates contents according to value rather than logic. This foundational claim, elaborated most fully in Psychological Types, insists that feeling is emphatically not emotion: it is a discriminating, ego-mediated process of acceptance or rejection, capable of being differentiated or inferior, conscious or shadow-ridden. James Hillman, in his contribution to Lectures on Jung’s Typology, extended this framework considerably, distinguishing feeling from eros, from emotion, from sensation, and even from love itself, arguing that feeling is irreducibly human and individual — a function of consciousness, not a divine force. Von Franz contributed the developmental and archetypal dimensions, tracing how the feeling function may be governed by the mother complex, wounded by cultural impoverishment, and requiring psychological courage to engage honestly. Romanyshyn applied the concept methodologically to research, positioning feeling as an evaluative index within alchemical hermeneutics. Sharp, Quenk, and Beebe situate feeling within the typological hierarchy of dominant, auxiliary, and inferior functions, attending to the distinctive pathologies that arise when feeling is repressed or undifferentiated. The central tension throughout the corpus is between feeling as a precise, rational instrument of valuation and the persistent popular conflation of feeling with emotion, sentiment, or Eros.