Longevity: Beginning with the Second Volume of the Heavenly Book

The Three Volumes of the Heavenly Book

Upper Volume: It speaks of the Dao, reaching all the way to the origin of heaven, earth, and the cosmos.

Middle Volume: It speaks of the arts. The Thirty-Six Heavenly Methods reveal the laws governing the workings of the Heavenly Dao.

Lower Volume: It speaks of techniques. The Seventy-Two Earthly Arts offer endless transformations and can counter all things.

Yu Lan begins by studying the lower volume of the Heavenly Book. He slays evil spirits and vanquishes demons, embarking on a path to immortality paved by the Heavenly Book.