Sleep in the Harvest

"He who gathers in summer
   is a wise son;
He who sleeps in harvest is
   a son who causes shame."
                     Proverbs 10:5

I found this verse thought provoking because of it's dual application.

Certainly it applies literally to our responsibilities/work, but does God also have a harvest he wants us bringing in, and we're just sitting at home?

I find it easy to say things to the effect of, "It's just not my gift" or "He hasn't put me in a place where I can help." But I don't for a second expect those lame excuses to hold up on heaven. Am I sleeping? Are you?