This semi-autobiographical novel delves deep into philosophy through the narrative and inner monologues of the author on a motorcycle trip with a couple and his son. It guides the reader through a series of questions, one's that stick out to me are, what is reason, what is quality, what is madness?

If you like eastern philosophy, you'll like his western approach to it. It's a little dated in some parts but still very readable.

Read it! It's life changing.