"Light" theory and ramblings

I'll start this with clarification that I am a massive cosmic horror fan, I love the impossibility of it all and how infinitesimally small humanity or reality can seem compared to these unexplainable things, so please excuse any needing out I do in here!

So!

I honestly got the vibe of "perception" and "altered perceptions" from the general atmosphere of both film and game.

Specifically in the film's case, when I watched it I felt a sense of awe and the irrevocable idea that humanity as a whole meant so little, my theory was entirely based around the mention of something peering in through a "pinhole" view of reality, and perhaps in a form of "if I can't see it, it doesn't exist" ideology; what this being perceives is all that remains.

The blood eel in the film feels like an amalgam created from both the human wish to understand/catalogue for future humans and the vitriolic cosmic horror that wanted to remain hidden. The blood eel felt like she didn't want to be found because what she and her team of SM-8 found caused them to become whatever the blood eel actually is, the human part of her that remained lead Simon to the light, to the "Being Beyond" and instead of him losing his mind like she did and thusly lost her human form, he was 'chosen' in a way to pass on the knowledge of the being, of what caused the Quiet Rapture, that the thing beyond was finally to 'ready' be seen, to be catalogued by the creatures it was perceiving. Of course, the blood eel then seemed to react as though she were feeling betrayed in a way screaming things like "why you? Why did it choose you?" (Not verbatim, just from memory) After when Simon reconnects to the COI and went about fetching the blackbox data, she's still in his head, counter arguing and trying to convince him that there is no point, that he must give up, bury the evidence that he came back for, to abandon humanity like she and her team did.

By Simon succeeding and choosing humanity over himself, abandoning his selfish wish to continue living, he proves the "Being Beyond" right in letting itself be perceived by him, that proof now exists in the blackbox, in the recordings, Simon might be gone, but humanity will learn and it will survive just like he did against the odds. What's important to recognise is NOT that Simon is some saviour or hero, he is marked with trauma and such self-hatred and pain that he cannot let go truly of what he did, he was quick to focus solely on himself when the chances of survival dwindle early in the film. He is not a saviour, but he is someone that had the right slivers of humanity to prove that he could be more. That humanity itself could be more if pushed in the right direction.

(I did post this on YouTube under filmcomicsexplained's video about the film, I just felt compelled to share it here also)