How to explain the name Mengxuan?

Two meanings. First, it describes the mother’s possible dreams when she was pregnant. It means seeing auspicious things spinning in the sky. In ancient times, it was often described that when the emperor and the noble minister were born, the mother often dreamed. Seeing a dragon soaring and circling, etc.; another meaning is to place the hopes of parents and elders, hoping that he will be successful in the future, just like a soaring dragon soaring up into the clouds. My humble opinion, hehe