Dead Man Walking or Live Man Running?

I was listening to a sermon by Alistair Begg and he made a comment that has been swimming around my head for the last week. He said that morticians make dead people look alive while Jesus called Lazarus back to life. I find that much of my spiritual life is plying the mortician's craft to myself - using makeup to dress up my dead flesh. Ironically, Jesus has given me new life and I neglect letting this life shine.