laying up treasures

I've always heard the phrase, lay your treasures up in heaven but how exactly do you do that?  Be a good person, do good deeds?

I recently finished reading Don't Waste Your Life by John Piper (which is a must read) and he said

Is this not, then, the way we lay up treasure in your house - to give our money and ourselves to make as many rich with God forever as we can?

 I think it's easy for us to give our money to good projects or people in need.  But how often do we give ourselves?  Completely and wholly give ourselves?  To completely give yourself to something, you cannot hold back.

The Olympics are coming up and these athletes will give themselves to their sport.  They will sacrifice anything necessary to be the best.  Time, relationships, food, etc.  When was the last time you sacrificed something to help someone else?

I am guilty of not sacrificing everything.  You see, whenever I don't sacrifice everything and I hold something back from God, that makes me selfish.  I need to live a selfless life because that is the only way to store up treasures in Heaven.  When I am selfless, I can give my money and myself to make as many rich with God forever and isn't that our ultimate purpose?  To make as many rich with God forever as we can?

Take the first step today.  Give yourself.  Completely. Wholly.  Give yourself.