Control; restraint. This is the first rung on the ladder of Patanjali’s Ashtanga Yoga (the eightfold path). It involves five guidelines for interaction with the “external” world: ahimsa (non-harming), satya (truthfulness), asteya (non-theft), brahmacharya (control of the sexual energy), and aparigraha (greedlessness). Yama is also the name for the Vedic god of death. Read more about the yama here.