Today.

I know it's today that I meet your train, entering my town's station.

I know it's today that passengers who look like you are liable to trigger a cardiac event.

I know it's today that I might say "happy birthday", only three days late.

I know it's today that you might tell me anything. I'll be glad to listen, even if what I hear makes me sad. Being sad but certain would be an improvement.

I know I'll carry that book ("Alí en el país de las maravillas"), in the hopes that you''ll tell me to keep it, and that you'll borrow another one from me.

Note: please do keep the Spufford. I'm inside those  pages, a lot more than you might guess.