Does this make sense to you?

I think you took my first line too directly. Science does not know everything about the human body and its inner functionality, sleep was just a metaphor I used to describe a different state of consciousness. Tho, that is not my point. My point is that we as a human being does not require the complicated knowledge of how our body operates in order to operate it. That "ignorance" seems solid enough to say that our brain has higher functionality that our consciousness does not fathom. This vast ocean of knowledge are completely untouched to us human, yet everybody knows how. We learn about a human body through examinations and analysis, not decyphering how our higher subconscious works. Even your statement refers to subconscious areas in our brain. It is somewhat aligned with the statement "mankind operates in a limited state".

This "vast ocean of knowledge" you're referring to is a cluster of autonomic functions not available to us consciously for very good reason. If you somehow gained access to any one of those then the system would be compromised and you would forever have to regulate that aspect on your own. Science knows everything about the human body with only one exception: the brain. Besides that, we know quite literally how everything works with very small gaps in knowledge that are being filled contemporarily.

Almost everyone in this thread is woefully under educated on even the most basic of scientific fact.