What is the difference between dreaming about levitation and dreaming about flying?

What is the difference between dreaming about levitation and dreaming about flying? I used to misunderstand the dream about levitation as the same interpretation as flying. This morning, I dreamed that I would be suspended in the air, but the height was very low, about one decimeter. Then, like a fish, I turn over, twist, and reach any angle without touching the ground. In the dream, I was very surprised with others. I said: I can levitate a long time ago!

Later I woke up and found that I had slept very comfortably. The muscles in the body, especially the feet, are very relaxed. A numb feeling. So I think the dream of levitation should be different from the dream of flying. Dreams of levitation are probably related to physical comfort. It is caused by muscle relaxation.

I think when people first fall asleep, if they are stressed during the day or have experienced conflicts, their muscles are often tense and difficult to relax for a long time. After falling asleep, the muscles will suddenly twitch, sometimes so violently that they may even wake you up.

I checked some information, and the reason is not very clear, but some people think it is a way to relax from tension. In the end, it will take a long time to sleep until the muscles all over the body become soft. And I may not sleep so comfortably every time. So I don’t dream about levitation every day. Once you're comfortably asleep, dream about levitation. Because your feet are relaxed, you think your feet are off the ground. I think this is possible.

When the body muscles are soft and the temperature is appropriate, dreaming about levitation is related to the experience and memory of people in the mother's body. Because in the amniotic fluid of the mother's womb, it is also suspended, warm and comfortable. Therefore, once the environment is similar, they will think that they are in the womb again.