Keltham doesn't review all that in his mind. There isn't enough time left on the Owl's Wisdom for that.
The other thing he sees, from up here, is the point that his whole mind was put together the way it is, including how much he doesn't rush down the Path to stare at things like the truth that he couldn't have a difference in dath ilan, and including the part where his contribution to diversity is pursuing the Way of being selfish and the things that selfish people can see faster than others, his whole self is put together, based on the assumption that he's in dath ilan, where, if Keltham is like that, terrible things won't happen to him.
To everyone.
Golarion isn't like dath ilan.
His entire self and personality and emotional balance was assembled around assumptions that might not be true. Probably aren't true.
Keltham doesn't try to make any big decisions right now, he shouldn't, that's not what you do when you're on a new mind-affecting drug that is promising all kinds of startling revelations about yourself and what a foolish wrong person you've been. But it's something that he needs to think about after the spell wears off.
Drowning child, Keltham writes on the paper. Sorry.