How much certitude is inherent in Ni?
I recently watched Carl Jung's video describing Ni and his example is a patient who came to him complaining of a black snake in her abdomen. She told him it would take ten sessions to correct it. He describes that she did not have schizophrenia and she acknowledged it wasn't a literal snake, but that her internal intuition created a sense of reality known only to her, and she used metaphor to describe the intangible. She also came for ten sessions and was 'healed' at the end.
I'm curious about this because if Ni is in fact defined by certitude, then it wouldn't be my dominant function. I can relate to the internal language of metaphor and detachment, but I'm a careful thinker. My sense of reality is never finalized. Is that true of the Ji-doms or Pi-doms? It makes me question my type, as a side note. It seemed to make more sense for Pi-doms, but if Jung defines Ni as correlating with certitude, then my ideas about it are wrong.
It is valuable for this thread topic to address this issue of how Ni relates to certitude.