Hi theruthlessone!
I like your dangerous question.
I have a philsophy degree and would love to give you tons of boring books!
But, if you'd like one you might ACTUALLY read and will bring your mind into a whole new direction, then I recommend
The Spirit Molecule by Dr. Rick Strassman...
There's also a movie about it.
Haha im actually aware and lets just say have seen the spirit molecule in action due to reason's the T & C on here wont allow me to go into depth
with....