Who are you to mock him? If the trip changed him for the better, to be closer to God, than perhaps you shouldn’t be so quick to condemn.
I don’t mock. I don’t presume. But I can make some inferences and I just see another person using God as his good luck charm and meditation partner. The trip may have “changed him for the better” but I notice his change didn’t include NOT clandenstinely writing the book. I sincerely hope he is now a follower of Christ.