Hell "Begins With a Grumbling Mood"

C.S. Lewis, describing hell, in The Great Divorce:

"...it begins with a grumbling mood, and yourself still distinct from it: perhaps criticising it. And yourself, in a dark hour, may will that mood, embrace it. Ye can repent and come out of it again. But there may come a day when you can do that no longer. Then there will be no you left to criticise the mood, nor even to enjoy it, but just the grumble itself going on forever like a machine." C.S. Lewis, The Great Divorce ("the timeless novel about a bus ride from hell to heaven), pages 77-78.