Hello, and welcome to DV!

Did you know that you were dreaming when you were in the dream? If you were, it was a lucid dream. It is possible to dream of having super powers and do impossible things, and not be having a lucid dream, because you think it's real. Also, it's possible to have a lucid dream, and finding yourself unable to manipulate the dream, and do impossible dreams.

If you have any more questions, just ask. You might also want to check out the tutorials section to learn how to induce lucid dreams.