I've read something about astral travel and it says dreams are similar to astral travels but without being "conscious". In that case, you're "out of your body" and can experience feelings in a different way, since you're in your astral body. We're not very used to this from, so we tend to get impressed when experiencing great feelings.
Or maybe I drank too much, and you dream of what your subconscious knows is "more emotional" for you.
Can't relate, dreams about self made universes and people living in it. Much more fun that way, anyway....
I'd say we are far less emotional. In my dream, an Asian man crashed a Pepsi truck into my house, and I was only a little bit upset.