I had to return the book to the store. Every other word was seemingly mother F___, fu__king.... The language was so strong I put the book down two or three times before giving up reading it. Finally, i realize my brain does not recognize that language or find it enjoyable.
It seemed to me the writer is not joyful as it appears there is anger and hostility in his writing.
Math 5:3 Happy are those conscious of their spiritual need. Perhaps he had never found how to be happy and joyful without swearing.