Board Thread:General Discussion/@comment-28173513-20160410061049/@comment-24669022-20160412175143

I kind of view it as a storyline that is reminiscent of one they did in "Charmed" where they had to go to Limbo. Because Hades is preventing souls from moving on, the Underworld is a wasteland, but since the heroes are introducing hope by being there the Underworld is beginning to show signs of 'life' and show it's true nature, as evidenced by the flowers popping up. Maybe. Just a theory.