Answer:
I fly through the air on small feathered wings, seeking out life and destroying all things.
A hill full, a hole full, yet you cannot catch a bowl full.
What grows in winter, dies in summer, and grows roots upward?
I weaken all men for hours each day. I show you strange visions while you are away. I take you by night, by day take you back. None suffer to have me, but do from my lack.
I never was but always will be. No one ever saw me but everyone knows I exist. I give people the motivation to better themselves every day. What am I?
What do angels sing in the shower?