My degrees are in philosophy--but led me to psychology and study of human nature. The artistic part of our brain is the insula-the area those who suffer from bi-polarism (and schizophrenia) tap into (their mania--noradrenaline/serotonin). Most interesting people in my opinion. If young-fun times.

Just keep in mind with the good--comes the bad (depression...) and depending on their state, could be a pain in the ass having friends like them too. However, for monks/sages/mystics, they too tap into this area. And those are the ones you really want to meet to be friends with. Whole new world.