 Paramahansa Yogananda envisioned the development of his spiritual communities beginning with individual home study of the SRF Lessons, and the establishment of small altars for the practice of his teachings of Kriya Yoga meditation in individual homes.Yogananda then envisioned groups of his disciples forming SRF centers for mutual support in meditation and study of his teachings.The centers would grow until temples would be established, served by SRF ministers of the Self-Realization Order.