This a book that I read as a young man, a little to do with motorcycles, mostly about a "journey", but some think it is an interesting "read", I enjoyed it. See what Wikipedia says about Zen and the Art of Motorcycle Maintenance: An Enquiry into Values
. And, do your own google search for more information, as there is always more and sometimes opposing opinions. And, I see that there is now a Guidebook to Zen and the Art of Motorcycle Maintenance, maybe this will help in understanding the original book.