Katsuzo Nishi's health system is a real philosophy of life aimed at success and harmonization of all spheres of human existence. This book is dedicated to the first stage of the Health System, namely the issues of complete cleansing of the body at the physical, mental and spiritual levels. Most children are born healthy. Growing up, a person acquires not only experience and knowledge, but also various diseases. Over time, our body becomes clogged, and in order to continue living a full life, we need to completely cleanse ourselves. Moreover, cleanse not only the body, but also the mind, soul, emotions. Only then can you become a truly healthy, prosperous and prosperous person. In this book you will read about the five rules of cleansing; about cleansing the gastrointestinal tract, liver, kidneys, lungs and blood; emotional, mental and spiritual cleansing; cleansing with water, light, stones, plants and infusions; learn to replenish the body's vital energy, perform breathing exercises to relieve stress and tension, and create a healthy mental attitude.