>>12122946
A human with time and mind powers is the kind of deliberate story choice that deserves an explanation of some kind. The planet having a lifestream doesn't really need an explanation because it's the will and magic blood of a living creature, Jenova being a destroyer from soace doesn't need an explanation because soace is vast and can have anything in it, Sephiroth being a superhuman even among superhumans gets explained because of course it would and a single random human having time-mind powers deserves an explanation as well.