The tragedy of addiction and powerlessness can turn into the biggest blessing, if we use it the way it was intended by G-d; i.e. as a springboard for inner-change and spiritual growth.
"You cannot see My face, for man cannot see My face and live... you will see My back, but My face shall not be seen" (Exodus 33:20). Of course God has no body. It was not His physical appearance that was being discussed. Moses wanted to "see" -- to comprehend -- God's ways and His interaction with His creations. What he was told is that with our finite intelligence we can't understand events as they unfold; it is only retroactively that "You will see My back" and grasp God's infinite wisdom. Kierkegaard expressed the same idea when he said, "The greatest tragedy of life is that it must be lived forward and can only be understood backwards."
From an article on Aish.com here.