Previously, Chu Nan did not have the time to think carefully. Now that he was flying slowly and had nothing else to do, he began to seriously think about this problem.
Generally speaking, he was completely relying on the Goddess' Song cultivation method to continuously transform the spatial energy around him into a life force to replenish himself and ensure that his life force was not completely lost and he would not die directly.
This was naturally a situation that completely went against medical common sense, but it was not completely traceless.
When a martial artist broke through the Cosmic Heaven's Gate and turned from an Internal Breath Realm Martial Artist to a Void Break Realm Martial Artist, they would sense the spatial energy and use their Internal Breath to fuse with the spatial energy to form a spatial energy cycle. In the end, they would break through the Heaven's Gate and be able to use the spatial energy to fly freely in the sky in the future.