You know you are in love when you see the world in his eyes, and his eyes everywhere in the world.

Love feels no burden,
thinks nothing of trouble,
attempts what is above its strength,
pleads no excuse of impossibility...
It is therefore able to undertake all things,
and it completes many things,
and warrants them to take effect,
where he who does not love would faint and lie down.
Love is watchful and sleeping, slumbereth not.
Though weary, it is not tired;
though pressed, it is not straitened;
though alarmed, it is not confounded...

- Thomas A. Kempis -