A theory on the physical realm and the spiritual realm

have a theory on my take on the spiritual realm and the material realm. I am guessing, one is an eternal sea, the goes on forever in depth and it all directions, and the other is like the sky, which also extends in all directions and heights, which means, both realms have no time or space. Our life is like a drop of water that escapes the sea, and leaps into the air, or the reverse, a bubble of air, that plunges into the sea, and for a moment, that span of life, is in that other realm. It that moment, it takes a form and has a sense of time, a life span, so to speak. But like all bubbles of air, they return to the surface, or like any droplet of water, it returns to the sea, so too must the lifespan end. But when it does return back to the realm it came from, it returns to an eternal realm, which has no beginning, nor end, no time, nor space that defines it sense of being. It returns to a huge "whole" to where it came from.

Well, it is just a theory. I can guess, can't I?