User blog comment:ImperiexSeed/Castiel's shifting of Sam's mental problems made no sense!/@comment-2170335-20120402024908

For the love of god its simple because he was halucinating lucifer the pain from Lucifers Cage was making earth hell for him those memorie are scars there is no way to destroy the problem u can't make it disapear but Castiel transfered the power to himself so all that pain that and hell sam was experiencing Cass now experiences and hes halucinating him cause its friggin Lucifer's Cage hes an angel buthumans and demons and monster are the ones that can't harm em hell on the other hand is different