One who practices yoga is called a yogi or in Sanskrit, a yogin (masculine) or yogini (feminine). These designations are mostly reserved for advanced practitioners. The word "yoga" itself --from the Sanskrit root yuj ("to yoke")--is generally translated as "union" or "integration" and may be understood as union with the Divine, or integration of body, mind, and spirit.
In the Fourth Way teaching of G. I. Gurdjieff the word yogi is used to denote the specifically mental path of development, compared with the word fakir (which Gurdjieff used for a path of physical development) and monk (which he used for the path of emotional development).
Yoga | Yogis | Asceticism