Some Thematic Hypotheses, off the top of my head
Homestuck boils down to two fundamental elements, which go by many interchangeable forms. There’s “Time and Space” (or any ‘opposing’ aspect pair), there’s “Caliborn and Calliope,” there’s “Vriska and Gamzee,” there’s “visuals and text,” there’s “meat and candy,” there’s “trolls and cherubs,” there’s “Platonic idealism-based physics and trolling,” and– I posit– there’s “I and you.”
“I” is a sort of Ultimate Self, you could say. “I” is who– I posit– the Prince wishes to make manifest, “why don’t we become One God.” Lord English is the closest Homestuck had come to representing “I” in one body, and it’s probably for the best, because “I” is the complete death of individuality, freedom, diversity, autonomy. “I” is reality beating to one drum, and in order to manifest, that means someone’s agenda has to be enforced over all else. So, instead, “I” is split into each and every character, and it’s up to them whether they want to focus on that “I,” and how much they would want to.
“You” is… well, for some reason I want to point at the Green Sun Black Hole, the emerald eye of the storm. “You” watches the spectacle of existence as an independent observer. Unlike the puppetmaster “I” God, “You” is more like Godhead Pickle Inspector, unwilling to intervene in the reality-threatening war. (“The illusory world of form is not to be interfered with, and the divine dance within is to be revered silently through His omniscient ogle.“) MSPA Reader is one of the clearest examples of a manifestation of “You,” and I don’t think I need to elaborate on that one. Every character, though, has a bit of “You” in them, and how much they focus on that “You” is reflected in how selfless they are towards others. The presence of “You” still has an effect, though, just as the presence of a black hole would. They still count as an entity with mass, they can still tip the scales, they’re just inherently harder to… notice?
…that’s all I got for this particular thought: Homestuck is a million-word abstract dance of manifestations of “I” cascading and colliding while watched by (and fearing?) the great “You.”
Does sound a bit, well, Saussure. I guess that’s my own tastes reflecting.