The so-called Meridian Casting stage was to create nine spiritual meridians connected to the lower Dantian and run through the martial artist's body. Not only could it store a large amount of Inner Qi, but it could also drive the martial artist's entire body to transform.
These spirit meridians could also effectively absorb the Heaven and Earth Spirit Qi from the outside world, helping martial artists to improve at an extremely fast speed. However, the lower dantian did not have this ability. Only through the spirit meridians could one absorb the Heaven and Earth Spirit Qi.
It was precisely because of this that these nine meridians forged by martial artists were called spirit meridians.
