“Lost – yesterday, somewhere between sunrise and sunset, two golden hours, each set with sixty diamond minutes. No reward is offered, for they are gone forever.”   -Horace Mann
I think one of the reasons I love to paint (plein air especially) is because it keeps me in the present.  The way time ebbs and flows fascinates me.  Sometimes it goes so fast, sometimes it seems to slow, and the lost hours are what terrify me the most.