How did Jung per-se define Ni (introverted intuition)?
Spoiler:
Intuition, in the introverted attitude, is directed upon the inner object, a term we might justly apply to the elements of the unconscious. The relation of inner objects to consciousness is entirely analogous to that of outer objects, although theirs is a psychological and not a physical reality. Inner objects appear to the intuitive perception as subjective images of things, which, though not met with in external experience, really determine the contents of the unconscious, i.e., the collective unconscious, in the last resort. [...] Although this intuition may receive its impetus from outer objects, it is never arrested by external possibilities but stays with the factor that the outer object releases within. [...] Introverted intuition apprehends the images that arise a priori, i.e., the inherited foundations of the unconscious mind. These archetypes, whose innermost nature is inaccessible to experience, represent the precipitate of psychic functioning of the whole ancestral line, i.e., the heaped-up, or pooled, experiences of organic existence in general, a million times repeated and condensed into types. Hence, in these archetypes all experiences are represented, which since ancient times have happened on this planet. Their archetypal distinctness is more marked, the more frequently and intensely they have been experienced. The archetype would be—to borrow from Kant—the noumenon of the image which intuition perceives and, in perceiving, creates."
Again, the Jungian definition of intuition is a bit different to the commonly-understood mainstream one. And that’s fine. Intuition as a concept is broad enough to have different takes and inferences on it. But in this thread specifically I’m talking about Jungian intuition.