Thoughts for a story?

Hell's demon just had a dream... a dream where a red sun died in a red blood sea, where everything turned from life to death.
The demon thought, what if I dreamt of a place with no anger and no joy, how would it be? would it be good? would good exist at all? how can good, joy and happiness exist if there's no anger nor sadness?
There's people who live in anger, who live in sadness, who barely know what happy is. Would it be paradise to them? would it be at least better? or would they end up making that kind of world into a sad and blue place? would they become creators or gods for being able to make those feelings exist?
Is it at least possible that those feelings would feel the same as we feel them now? would they be different but very similar?...
What does the red sun mean?...