I often dream that I can reach the sky in one step. I remember I once walked into outer space, and then I wanted to walk back to the earth. I could walk back to the ground.

Many people have had this dream you mentioned. I'm not a professional psychologist, so I can't give an answer, but I don't think it's necessary to entangle this kind of thing, just relax myself and avoid tension and mental stress.

Dreaming often makes you nervous the next day, so you need to pay proper attention to diet, work and rest. For example, try not to drink coffee or smoke before going to bed.