The Great Dream Record

The Heavenly Dao has nine constants.

Thus, Opening, Establishment, Shock, Scenery, Command, Rest, and Void

are the seven constants that govern the human world, corresponding to seven days.

These seven days are called a Prayer,

and also correspond to the passage of time in the mortal world.

One constant lasts ten years, so a lifespan of seventy days is all one gets.

Do immortals really exist?

And where are they?