As a cultivator, it is very important to learn about the gradations of internal cultivation.
Generally, we use the following level classification:
I. Refine Jing (vital essence) into Qi: this stage contains inside and outside Qi moving, small ZhouTian opening and Entryway opening three steps.
II. Refine Qi into Shen(spirit): this stage contains internal and external opportunities appear, big ZhouTian moving and the Entryway losing form three steps.
III. Refine Shen return emptiness: this stage contains primordial Shen appear, Shen baby in vitro and millions of incarnations three steps.
IV. Refine emptiness fit Tao