Do could be:
The first musical note, the basis of the creation or just a strong point of reference
The verb to Do, which means the constant flow and movement of everything, and the act itself of doing is the basis for everyting
The ancient way to call the Musical note Do was Ut, which in latin is the preposition that involves a final clause. a final clause, in linguistic is a clause that expresses purpose for something, so it's dynamic, it's the basis of the motivations which push everything to be whatever it is, that's the reason of the basic world's question, the simple question that can always have an answer: Why.
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