Playing the guitar is like telling the truth - you never have to worry about repeating the same [lie] if you told the truth. You don't have to pretend, or cover up. If someone asks you again, you don't have to think about it or worry about it because there it is. It's you.
Self-knowledge, I guess, is hard. But I think pain is harder, personally. I think to be hopeless is very hard. I think to die without hope or to live without hope is very hard.