Can human brain function correctly when in unnatural state.

What is the civilized understanding of the natural state of a human brain--can you explain it. I am asking you to tell me about the denotative maning, which applies to the catigorical "natural" human mind. When you tell me that then we will examine what the bible said about and see if it is incoherent, or 100% coherent. The text is found in 1 Corinthians 2:1 - 14.