Would you fall asleep if you knew you'd never wake up?
Would you have the same pleasure sleeping if you knew you couldn't dream?
Recurring dreams are especially valuable to try to understand. If we are able to identify the issue and solve the problem in our waking lives, the recurring dreams will stop.
All people dream in color. The truth is that we only recently began to dream in black and white — after we saw, for the first time, what a "black and white" world would look like (through photos and TV)