I've always been appreciative of Johnny Cash, the man, and his music.
His son has recently penned a tribute to him, here's a couple excerpts I found enlightening-
I think a lot of people see him as a dark foreboding figure, and very cool. He was always cool, his charisma was powerful, but he was also a very gentle, loving, kind man. He was more focused on spiritual matters than I think a lot of people realize. His faith was paramount to him throughout his whole life, even when he was suffering from addiction, and what pulled him out when he was sick. He was not just a songwriter. He was a painter, a sketcher, a poet. He was a scholar; he studied the Bible more than anything.
The thing that mattered the most in his life was his relationship with his creator. He was educated and knew about it. He couldn’t have dealt with his addictions without it. That’s how he found redemption and peace, through prayer and connection to God.