In 1948 at the age of twenty-two, Swami Kriyananda (J. Donald Walters) became a disciple of the Indian yoga master, Paramhansa Yogananda. At Yogananda's request, Swami Kriyananda devoted his life to lecturing and writing, helping others to experience the living presence of God within. He taught on four continents in seven languages over the course of 65 years.

He wrote more than a 150 books, 400 pieces of music and founded nine Spiritual Communities worldwide. His talks, his music, and his many books have touched the lives of millions. Swami Kriyananda took the ancient teachings of Raja Yoga and made them practical and immediately useful for people in every walk of life. His books and teachings on spiritualizing nearly every field of human endeavor include business life, leadership, education, the arts, community, and science.

He wrote extensive commentaries on the Bible and the Bhagavad Gita, both based on the teachings of Paramhansa Yogananda. He is known as the "father of the intentional communities movement," which began in the United States in the late 1960s. Inspired by Yogananda's dream of establishing spiritual communities, in 1969 he founded the first of what are now 10 Ananda communities worldwide. They provide a supportive environment of "simple living and high thinking" where over 1,000 full-time residents live, work, and worship together.

A monastic almost all of his adult life, Swami Kriyananda was a Swami of the Giri (Mountain) branch of the ancient Swami Order, as was his guru and his guru's guru, Swami Sri Yukteswar. He was the spiritual guide of Ananda Sangha Worldwide.