Cute Young Brunette Girl Practicing Yoga Poses

Someone who practices yoga or follows the yoga philosophy to a high level of attainment is called a yogi or yogini.
History
The Vedic Samhitas contain references to ascetics, while ascetic practices ("tapas") are referenced in the Brāhmaṇas (900 to 500 BCE), early commentaries on the Vedas. Several seals discovered at Indus Valley Civilization (c. 3300–1700 BCE) sites in Pakistan depict figures in positions resembling a common yoga or meditation pose, showing "a form of ritual discipline, suggesting a precursor of yoga," according to archaeologist Gregory Possehl. Some type of connection between the Indus Valley seals and later yoga and meditation practices is speculated upon by many scholars, though there is no conclusive evidence.