Koichi Tohei, founder of Aikido in the unity of mind and body (Aikido with Ki) and president of the International Ki Society, shows us in this book how we can rediscover unity with the laws of life. Alongside effective exercises and behavioral techniques that can be learned by anyone, regardless of age, gender, or physical fitness, the author provides concrete guidance on how we can practice and realize the unity of mind and body, especially in our hectic daily lives. Thus, this book not only conveys the essential foundations of their path to all practitioners of Japanese martial arts - Aikido, Judo, Kendo, Karate-do, and Kyudo - but also enables each of us to shape our lives harmoniously, powerfully, and happily, free from illness, fear, and depression, while providing concrete assistance.