Word selected:
aftersome
adj. astonished to think back on the bizarre sequence of accidents that brought you to where you are today—as if you’d spent years bouncing down a Plinko pegboard, passing through a million harmless decision points, any one of which might’ve changed everything—which makes your long and winding path feel fated from the start, yet so unlikely as to be virtually impossible.

Someday I’m sure he will ask and I will acknowledge it’s the only way it could have ever been,
And the advantage is that not only was his life predestined but every second of it makes every bit of sense,
Tracing the aftersome into points of galaxies of eternities,
Alexander, I’m grateful for the plans and happenstance that led you to me.