Since my computer has been out of service for a while (and my mom has generously let me monopolize hers), I have put off charging my iPod nano. These little iPods are pretty cool devices, but they don't last long on their own power. In fact, to do anything worthwhile on one for an extended time, it has to be plugged in while you use it.
I'm kind of like that spiritually. I can't run on my own power. God's my source, and if I disconnect, it doesn't take long before my spiritual battery dies and I'm back to the yellow triangle with the (!) in the middle. This is a good reminder for me to remain daily plugged into Christ!
"I am the vine; you are the branches. If a man remains in me and I in him, he will bear much fruit; apart from me you can do nothing."