Practical Buddhist Teachings of Wisdom and Compassion. The Challenge of the Mind is a modern guide to the essential teachings of Buddha. Ryuho Okawa shows how we can apply Buddha's essential teachings to cultivate deep wisdom and compassion to promote a happy and peaceful life. Presenting the essential tenets of the law of cause and effect, meditation, transcendental wisdom, egolessness, the middle way, the relationship between enlightenment and spiritual powers, and the nature of karma, The Challenge of the Mind is a contemporary guide to succinctly frame Buddhist teachings.