I was using the idea of the drop of sea water in relation to the sea as a metaphor, not as a literal meaning, but no, you cannot understand the nature of reality via the rational mind, and to attempt an 'explanation' can only be in rational terms. The nature of reality can only be understood via the intuitive mind. For example, if I say that the nature of the phenomenal world is that it is illusory, that cannot be demonstrated via reason and logic. One has to SEE that it is illusory. One has to SEE into one's own nature to understand what it is. Seeing, without thought, is beyond logic and reason, or should I say, BEFORE logic and reason come into being. Seeing is possible with that state of consciousness prior to its forming any idea about what it sees. This state of consciousness is called Metaphysic (not metaphysics).
The rational mind cannot understand the nature of reality because it is constantly trying to 'figure it out', where there is nothing to figure out. To understand the nature of reality, one must simply see it as it actually is, with nothing in the way. But this involves a transformation of mind from one's ordinary conditioned view, to it's original, unconditioned state.
I look forward to addressing your other posts re: iPad later; no time right now, but thanks for your input. Good post.
PS: re: drop of sea water: I should have said 'chemical' compositon. Obviously, a drop of sea water cannot contain a whale.....or can it, LOL.?
(after all, how many hundreds of angels can dance on the head of a pin?)