Spoiler's ahead, you have been warned.
While E.Y.E's plot is rather confusing and messy, there are clues as to why events are the way they are. By piecing together the dialogue and the dissonance between events, some interpretations can be drawn. It's revealed that Rimanah, the main antagonist... is you.
Rimanah is trapped by his own guilt over what he did in the past. He betrayed his lover Circe and had her sentenced to death, killed his own mentor and murdered his childhood friend. As a result, Rimanah dives into a spiral of guilt and starts hallucinating and dreaming. The various timelines are 'cycles of guilt';the result of Rimanah desperately trying to wake from the dream by continuing the cycle. The true ending, or the lack thereof, is up to the player's, and by extension, Rimanah's choice; do they continue the cycles of guilt in hopes of finding a way to wake up? Or do they end the cycles and accept their actions? In a way, the last place Rimanah ends up represents how willing he is to rest and move on or how his guilt still eats away at him. If the player breaks the seal on the last frontier, they restart the cycle. If they don't, Rimanah is left to rest in peace.
