You know? I'd forgotten this, but at one point in my life I was really quite angry. I went to church, prayed, was so involved with the Spirit/God, I spent a week in a convent contemplating that mission for myself. But the dreams, flashes, feelings scared me to be honest and I felt all of the pain, the things people hide even from themselves, that I shut down. I called it the Psychic Suicide phaze.
Anyway, I quit dreaming. It just stopped and everything became flat, even my waking hours. After 3 years of that, I brought it back and I have to say, dreams are where I feel the most free.
You're so right! You can get answers by asking before you go to sleep. Not everytime, but the answers seem to come right at the perfect moment and everything makes sense.

It's especially nice when those dreams end up helping people around you or can pardon them from some unessary pain or stress.