Dreams and writer's block

I know people are always dreaming while they sleep, even if they don't remember their dreams. And I'm no exception. But lately I've noticed that when I'm trying to come up with something to write - or suffering a writer's block like now - my dreams become quite livid. They're pretty strange too. It's not like I'm dreaming something I can later say, I dreamed a great scene for my story!. The dreams - not quite nightmares - are weird, even though not totally scary. And I quickly forget them a few minutes after opening my eyes.