system
Given the following post, respond as if you're commenting on Reddit:
human
[Mass Effect] What would I experience if I were absorbed into the Human Reaper's consciousness?

Reapers are apparently made from the genetic material and possibly consciousness of millions/billions of individuals from a particular species. Because their goal is to preserve the uniqueness of each "worthy" species, does that mean each individual Reaper experiences consciousness differently? Does the term "consciousness" even apply to them? 

What would being integrated into a Reaper - not indoctrinated but fully integrated - be like for me?
gpt
I don't think we ever get a clear picture of what Reaper consciousness is in the games.  The Reapers themselves are confident that mortal brains cannot comprehend their thoughts or actions.

From Context clues, I'd guess that something like the following is happening:

* Each Reaper is a gestalt consciousness, representing the overall outlook and cultural facets of a species (i.e. a Turian Reaper will be aggressive and expect its followers to follow orders, while an Asari Reaper will be more thoughtful and cooperative with the Reapers around it).
* Individual minds don't really exist.  "You" are no longer "You".  Instead, you've added your brain pattern, social interactions, method of living, and genetic material to a grand database to help simulate Humanity's perspective on the galaxy.
* Individuals are 'simulated' at a mass scale.  It'd be like flying over a city and looking at the inhabitants: you can tell that there are individuals there, but it's impossible to discern their individual thoughts or actions.  Instead you're left grasping at the cohesive society (the city) that they've created as part of a whole.

That's the choice at the end of ME3: do you allow everyone to join a gestalt intelligence? destroying their individuality but saving their overall 'concept' of species and society? Or do you choose individuality, accepting that life is transient and that death is inevitable?