Ryuho Okawa is known for his wisdom, compassion, and commitment to educating people to think and act in spiritual and religious ways. In "The Challenge of the Mind, " Okawa offers his thoughts on karma--what it is, what it is not, and the place of happiness and peace in the modern world. He also discusses how to attain karma, and how this links in with other tenets of the Buddhist way of life. Written in clear, accessible language, this companion to "The Essence of Buddha" demystifies an often over-complicated tradition.