my theory is it's because he's the og successor of the wadjet (making him see the past, present and future)
Ohhhh that's a cool theory
That's a really good theory
I might be completely wrong bc that part was confusing me too but it could be a time when osiris was a God but Set wasn't a God yet.
Ahhh that would make sense too hehehe
I don't remember if this was explained at some point but, how does Osiris remember the past?? The times before they became gods???