The Beatles are metaphorical for the “belly of the whale” motif in mythology. I never realized it myself until I read “Anthology” and realized that they had spent almost 2.5 years in Hamburg playing 8 hours a day, 7 days a week. Now this isn’t literally true. They did have breaks. They definitely went home many times for breaks, but the most important aspect is that it is psychologically true. Apparently the clubs were physically below the street level, like walking down into a subway, and I do remember a compadre of theirs saying, “We’d go down their and wouldn’t come for air for a week.” Now this obviously is not literally true. But one understands the psychological, metaphorical implication: giving yourself over to something completely. That’s the idea of the belly of the whale motif in mythology. Even the the locals of the Cavern Club in Liverpool seemed to be stunned by the transformation of the post Hamburg Beatles. That’s the central idea of the “Belly of the Whale” motif. It’s exactly analogous to the idea of the male initiatory experience: You go in one person and come out the other side with a completely transformed consciousness. All mythology, as Joseph Campbell said, is about the transformation of consciousness.