the animal within

While reading Jack Rinella's "Philosophy of the dungeon", I read about awaking the animal within... it's a lot to take in... but I do understand the theology behind it... within each of us is a totem being that comes around during great emotional releases (or at least that is where I've see it so far). I can honestly say that I've only had a glimps of the animal that I have within me... and from the moments that I remember it scares me... just the thought of having a spirit animal that is part of my core being is just a lot to comprehend... I have already started looking for reading material on the topic of totem animals and spirit animals.

Any suggestions on the topic would be greatly appreciated!