In this article, I attempt to describe the perceptual-cognitive processes that are going on in a twinship relatedness. Through a case vignette that emphasizes the difference between an analyst and a patient who longs for a twinship tie, I conclude that a twinship experience, which is described as being based on the dialectic between a sense of sameness and difference at the experiential level, can be described as being organized as a delicate balance between mutual findings of oneself and not-oneself in the other at the explanatory level. When a patient finds herself in her analyst, she is expected also to find not-herself in her analyst; and when an analyst finds herself in her patient, she is expected also to find not-herself in her patient. This balance is always context sensitive—determined at a particular moment in the particular dyad. I stress that in working through this relationship, an analyst needs to be aware of the delicate balance of the mutual finding.