Well, the concept itself is, without a doubt, good. There aren't many traditional things, like a story, but the sentences mentioning the so-called "primordial" gave the reader a chance to create their own interpretation about everything mentioned. I like to interpret it as if it were something related to the Bible, especially about Cain or Lucifer… Sorry for my interpretation being so obvious.
Overall, I didn't see any mistakes in SPaG. I didn't see many things that would make the writing or even the concept lose its quality. What was explored about this concept, in my opinion, was even little. There are many paths that this "story" itself can take. The primordial, the prayer glass, and "the cup drinks you" are good starting points for a possible continuation.
The writing has its quality, although it swings towards being more basic than writing with more personality. It's on the right track.
The purpose, the conclusion… Ah, the conclusion: we have so many questions but few answers. Can I even say no answers? Opening up the reader's interpretation is a good way to create a good atmosphere, but when this freedom is great, the reader is more likely to feel that there is no direction to follow. I would say, more almost clear answers so that the atmosphere created does not lose its initial essence and less of that "Great Mysterious Mystery.".
