Whyfor

Were I to say the reason I am here
I would, I think, by now belie us both;
Not least because, although I'd be sincere,
I could no longer swear an honest oath
To say the reason has remained the same.
And yet because it motivated you
(At least, I think it did when first we came)
Its fundamental part must still be true
Since actions in the past retain their truth
And are not altered by the future's change--
Thus what we said, and meant, back in our youth
Time's violence cannot quite rearrange.
But nonetheless, each moment we remain
The answer changes, and will change again.