The fundamental teachings of IRH are the 'Exploration of the Right Mind' as a general goal, and the 'Principles of Happiness' also called the modern 'Fourfold Path' of Love, Wisdom, Self-Reflection, Progress, as a concrete goal.

At the basis of these teachings is the spirit of Buddhism and its two main pillars are the attainment of spiritual wisdom and the practice of 'Love that Gives.'

Love, Nurture, and Forgive A Handbook on Adding New Richness to Your Life In this book, Ryuho Okawa reveals the secrets of spiritual growth based on his own real life experiences. Starting from practicing the "love that gives," instead of expecting something in return for what you have done to help others, Okawa argues in Part One of Love, Nurture, and Forgive, you can experience a remarkable transformation through your own efforts to develop through the stages of love. In the second part of the book, readers can trace the path the young Ryuho Okawa walked, starting from the ordinary and reaching to an extraordinary height of love.

Ten Principles of Universal Wisdom The Truth of Happiness, Enlightenment, and the Creation of an Ideal World The Principles of Happiness, Love, the Mind, Enlightenment, Progress, Wisdom, Utopia, Salvation, Self-Reflection, and Prayer these are the ten principles that can serve as a compass for a spiritual life, enabling each and every person to bring happiness and spiritual growth to themselves, and to all those around them. This is a compilation of the first lectures of Ryuho Okawa, spiritual leader and the founder of Kofuku-no-Kagaku, The Institute for Research in Human Happiness, which has grown to be one of the most influential spiritual movements in Japan in the last twenty years. His passionate words and lofty ideals will touch the depths of your heart.