Jan's Metaphor of the Fish in the Water

The students of Jan Cox will remember one way Jan used to explain the ignorance of man about himself----a person's self understanding is like a fish who CANNOT perceive that he is a water creature because water is ALL he knows. A variation of this occurred to me: scientists and those who say they seek learning are like people studying the water from an elevation----they do not see the water, the important element, they do not see the water, for the fish.
Funny how man's speech is literally wet, in his mouth. This foam though, like the edge of an ocean wave, is not where the action is.