the level of revision is divided into gas refining stage, foundation stage, elixir stage, infant stage, deification stage, combination stage, Du Jie stage and Mahayana stage.

Ordinary fighters are divided into acquired fighters and innate fighters, and the innate fighters are equivalent to the gas refining period of repairing truth. The gas refining period is generally divided into nine layers, and the basic stage, then stage, Yuanying stage, deification stage, combination stage, Du Jie stage and Mahayana stage are all divided into early stage, middle stage and late stage, and sometimes there is a peak stage of dzogchen after the late stage.