Three Rules for Surviving in the Wasteland

"If you want to survive in the wasteland world, there are three rules. The first one - don't leave the pure land, the second one - don't step into the wasteland, and the third one... I only hope that you who read this book at this moment can survive." Most of the world of spiritual practice has become a wasteland. A guardian took a young man, and the young man took a book and embarked on a journey.