"Qi" refers to the "vitality" loaded when a person or thing is born or produced; The "number" here refers to the stipulation of "primary energy" on the quantity of people or things, so it is usually called "definite number" and "finite number" "Qi number" refers to the size of "energy" loaded by people or things when they happen.

Because vitality is innate, the ancients sometimes used "Tian" instead of "Qi", so "Qi number" is also called "Tian". So "days are up" and "days are up" have the same meaning.

Usually, the so-called "great vitality injury" or "great vitality injury" means that the amount of "great vitality" is greatly reduced; "Lose vitality" = "Run out of luck"

In short, "Qi" in "Qi number" means "vitality"; Among them, "number" refers to "the quantity of vitality".

If you don't understand, ask again.