The word hatha can also be seen as a combination of two separate "Bīja mantras" or single syllables - "ha" representing the masculine or solar energy and "tha" as the feminine or lunar energy.
As the Buddhism of Bodhidharma fused with the prevailing Chinese philosophies and practices of Confucianism and Taoism, it became Ch'an (from Sanskrit dhyāna, meaning "meditation" or "meditative state").