Chu Mu returned to the cave and once again sat cross-legged. He held the book, *Spiritual Ability Basics*, which he had spent his entire fortune on, and began to read it intently.
The book was very thick, almost the width of a fist. True to its title, *Spiritual Ability Basics*, the contents were far simpler and clearer than the Blazing Fire Technique.
Chu Mu read page by page, his pace slow as he mulled over every single word.
As he absorbed the book's contents, his once-vague understanding of this paradoxical Cultivation Immortal Realm gradually came into focus.
What was called Spiritual Power was, in fact, Spiritual Qi.
Spiritual Qi, in turn, was divided into two types. One was emitted from Spirit Veins formed by Heaven and Earth, permeating the world and existing everywhere.
The other type originated from Spirit Stones. Spirit Stones were produced by Spirit Stone Ore Veins, and despite their name, they were filled with pure Heaven and Earth Spiritual Qi.
