Why should I care about becoming everything again?

[vervex]

I believe you could go deeper than addressing hunger/thirst. Perhaps addressing the phenomenon of consciousness and unconsciousness could give us clue as how this mechanism of seeking to fulfill and know oneself through desires works. Consider a (unit of) consciousness which veils part of itself; it may feel incomplete and seek externally as well as internally to fill the lack it perceives. Through each experience and fulfilled desire, it is one step closer to understanding and uncovering its nature. I believe this mechanism happens subconsciously in most of humanity, yet it could well be what propels us "forward", so to speak.

This of course could link to your example of hunger being the primordial need of a living being: in the abstracted form of a body, because it perceives lack it seeks to fill this illusory void which it experiences.

Feel free to disagree if you think I am wrong. This is my understanding at this time but I am always open to broaden my horizons