I Eat Poetry

Poetry about losing faith/finding faith in God or any belief system?

and in return, a poem that I love but isn't quite relevant:
"These are easy verses" by T.H. White

These are easy verses, which anybody can write
in a minute:
So that more than two or three at a time
Leave a taste in the mouth,
But oh my God
If I could once get from my heart
What is in it
About man and madness,
Ambition and the blood of boys -