The host, a former British National turned Japanese, explores the Kumano Kodo, a religious holy area for Japanese Shintoists and Buddhists. Around Part 2 and Part 3 there is alot of things about Shintoism.
Shintoism is a native Japanese religion, older than any major religion, which accepts any belief - whether it be Christian, Islamic, Jewish, or whatever. It means God's Path and is very open. If you believe Jesus is god, then that is your path. If you believe in yourself, you yourself is a god