How is the realm divided in the novel Destiny's Day Disc? What is the name of the boundary?

It is divided into five parts: practicing qi, building foundation, knot Dan, ethereal and Mahayana. It is subdivided into refining qi, opening the light, crossing the valley, fake elixir, elixir, Yuan Ying, out-of-body experience, distraction, combination, Du Jie and soaring. Among them, refining qi and opening up the light belong to the period of practicing qi, and the period of crossing the valley and faking Dan is called the period of building foundation, while Dan is called the period of knot Dan, Yuan Ying, out-of-body experience and distraction are called the period of emptiness, and the period of combination and soaring is called Mahayana.