[svara]

That analogy doesn't work at all, since "the body contains the brain" does not describe a recursive relationship.

By contrast, you see people trying to "explain consciousness" by telling a story that assumes consciousness. When someone makes a statement like "Consciousness emerges from mechanism X in the brain.", every observation that lead to this statement originated in someone's consciousness.

It's less obvious than, but completely analogous to, how it's impossible to decide whether we live in a "base reality" or some sort of simulation - everything you could say about this reality that we perceive is contingent on that very reality.