We sleep and dream a third of our lives! Someone forgets them, waking up, and someone, avidly, talks about his night journey, and is looking for a clue to sleep. Others are surprised that they dreamed of a person they did not think about. Others are frightened that their deceased relative came to them, and even told them about their future. And how many magical plots, how many hopeless situations arise in a dream, and at that second it seems that all this is true! You run away, you get shot at, you fall off the floor, or you even die, and then you wake up and the sun shines again. A lot of things happen in a dream.