We are here on earth to do good for others. What the others are here for, I have no idea.
Provided you have enough mental aptitude (or methamphetamine) to follow along, the works of the following geniuses are guaranteed to permanently alter your ideas of reality, perception, consciousness, existence, truth, fiction, and 'what it all means'. Apply vigorously at first signs of consensus trance.
R. Buckminster Fuller
Gregor I. Gurdjieff
Robert Anton Wilson