Occasionally, however, we find ourselves submerged deeper into the ocean, perhaps through curiosity, perhaps just by accident. When this happens, we begin to feel a strange sensation as our shell groans under the pressure of the ocean. This sensation is often the first indication to us that there is something beyond the little world in which we live. But our immediate reaction, so deeply intuitive that it is often subconscious, is to move upward and away from where the pressure is exerted upon us.