"Autobiography of a Yogi" by Paramahamsa Yogananda as its a book thats on one level about a chockful of miracles in India and weird bugs about reality (like what you see if not what you get) but on a deeper level about reality in the way that steve jobs felt compelled to hand it as his parting gift at his funeral
That was not my takeaway at all. It was mostly about a delusional, albeit charming charlatan. A testament to the power of one's conviction in crafting an identity and a sense of self.