In the Western Regions, Buddhist temples are countless, believing in the cycle of reincarnation. In the Northern Heavenly Region, there is a secret sect searching for the Netherworld... The tales of the Netherworld are endless, but it's difficult to reach a conclusion.
Zhang Zhisu wrote his book when he was barely over thirty years old. He firmly believed in the existence of the Netherworld, a matter worthy of deep exploration. Li Xian enjoyed reading it immensely, and after leaving Huai'an County, he sought out a river vein to gaze upon.
He wanted to use the experiences written in the book to read the river, understand the river, and grasp the river... to observe the river's course and various situations within the river. Li Xian's comprehension was naturally high, and with the Kan Nie Mai teachings, he progressed from shallow to deep understanding, quickly mastering the principles in the first half of the book.
