Yogananda's seeking after various saints mostly ended when he met his guru, Swami Sri Yukteswar Giri, in 1910, at the age of 17. He describes his first meeting with Yukteswar as a rekindling of a relationship that had lasted for many lifetimes:
We entered a oneness of silence; words seemed the rankest superfluities. Eloquence flowed in soundless chant from heart of master to disciple. With an antenna of irrefragable insight I sensed that my guru knew God, and would lead me to Him. The obscuration of this life disappeared in a fragile dawn of prenatal memories. Dramatic time! Past, present, and future are its cycling scenes. This was not the first sun to find me at these holy feet!
After passing his Intermediate Examination in Arts from the Scottish Church College, Calcutta, he did his graduation in religious studies from the Serampore College, a constituent college of the University of Calcutta. This allowed him to spend time at Yukteswar's ashram in Serampore. In 1915, he took formal vows into the monastic Swami Order and became 'Swami Yogananda Giri'. In 1917, Yogananda founded a school for boys in Dihika, West Bengal that combined modern educational techniques with yoga training and spiritual ideals. A year later, the school relocated to Ranchi. This school would later become Yogoda Satsanga Society of India, the Indian branch of Yogananda's American organization.
In 1935, he returned to India to visit Yukteswar and to help establish his Yogoda Satsanga work in India. During this visit, as told in his autobiography, he met with Mahatma Gandhi, the Bengali saint Anandamoyi Ma, Nobel winning physicist Chandrasekhara Venkata Raman, and several disciples of Yukteswar's Guru Lahiri Mahasaya. While in India, Yukteswar gave Yogananda the monastic title of Paramhansa (the spelling was later changed to 'Paramahansa'). Paramahansa means "supreme swan" and is a title indicating the highest spiritual attainment. In 1936, while Yogananda was visiting Kolkata, Yukteswar died in the town of Puri.
Yogananda taught his students the need for direct experience of truth, as opposed to blind belief. He said that “The true basis of religion is not belief, but intuitive experience. Intuition is the soul’s power of knowing God. To know what religion is really all about, one must know God.”
Echoing traditional Hindu teachings, he taught that the entire universe is God's cosmic motion picture, and that individuals are merely actors in the divine play who change roles through reincarnation. He taught that mankind's deep suffering is rooted in identifying too closely with one's current role, rather than with the movie's director, or God.
He taught Kriya Yoga and other meditation practices to help people achieve that understanding, which he called self-realization:
Self-realization is the knowing in all parts of body, mind, and soul that you are now in possession of the kingdom of God; that you do not have to pray that it come to you; that God’s omnipresence is your omnipresence; and that all that you need to do is improve your knowing.
The Kriya Yogi mentally directs his life energy to revolve, upward and downward, around the six spinal centers (medullary, cervical, dorsal, lumbar, sacral, and coccygeal plexuses) which correspond to the twelve astral signs of the zodiac, the symbolic Cosmic Man. One-half minute of revolution of energy around the sensitive spinal cord of man effects subtle progress in his evolution; that half-minute of Kriya equals one year of natural spiritual unfoldment.
Autobiography of a Yogi describes Yogananda's spiritual search for enlightenment, in addition to encounters with notable spiritual figures such as Therese Neumann, Anandamoyi Ma, Mohandas Gandhi, Nobel laureate in literature Rabindranath Tagore, noted plant scientist Luther Burbank (the book is 'Dedicated to the Memory of Luther Burbank, An American Saint'), famous Indian scientist Sir Jagadish Chandra Bose and Nobel Prize winning physicist Sir C. V. Raman.
The absence of any visual signs of decay in the dead body of Paramahansa Yogananda offers the most extraordinary case in our experience.... No physical disintegration was visible in his body even twenty days after death.... No indication of mold was visible on his skin, and no visible drying up took place in the bodily tissues. This state of perfect preservation of a body is, so far as we know from mortuary annals, an unparalleled one.... No odor of decay emanated from his body at any time....
An article in the Skeptic's dictionary states that Rowe's statement, was accurate but incomplete. Rowe also mentioned that "he observed a brown spot on Yogananda's nose after 20 days, a sign that the body was not 'perfectly' preserved". The article states that the claim of a lack of physical disintegration being "an extraordinary phenomenon" is misleading as a "typical embalmed body will show no notable desiccation for one to five months after burial without the use of refrigeration or creams to mask odors."
Yogananda's work is continued by several of his disciples and organizations. Self-Realization Fellowship, which he founded, is headquartered in Los Angeles and has meditation centers and temples across the world. The current head is Daya Mata, a direct disciple of Yogananda.
Ananda, near Nevada City, California, was founded by Swami Kriyananda, a direct disciple of Yogananda. Ananda expresses an aspect of Yogananda's vision for World Brotherhood Colonies, an idea for spiritual intentional communities that Yogananda often recommended to his students. Ananda Village is located near Nevada City, California, with six other Ananda World Brotherhood Colonies worldwide. Ananda also has centers and meditation groups throughout the world. Swami Kriyananda often speaks at Ananda Center in Palo Alto, California.
Song of the Morning Retreat Center, near Vanderbilt, Michigan, was founded by Yogacharya Oliver Black, a direct disciple of Yogananda. The retreat center offers classes on yoga and meditation and hosts programs featuring visiting spiritual teachers.
The Center for Spiritual Awareness, located in Lakemont, Georgia, was founded by Roy Eugene Davis, a direct disciple of Yogananda. The CSA publishes books and audio cassettes, and offers meditation seminars at its retreat center headquarters on a voluntary donation basis.
The members of this list were drawn from Yogananda's Journey to Self-Realization, unless otherwise noted.