The five has to do with the capacity in human beings to come to realizations. When we find our true mind, or deeper mind, it brings with it a sense of solitude. So when fives are not so present, their challenge area is that they're trying to have that knowing and discerning of truth and untruth but without the basis of them. It's like i'm constantly trying to establish what's here and what isn't,. That can lead to certain kinds of expertise, but can also really lead me down a rabbit hole of obsessive thinking....