Yama, the first limb of Ashtāṅga Yoga, consists of ethical guidelines for social conduct, including Ahimsa (non-violence), Satya (truthfulness), Asteya (non-stealing), Brahmacharya (self-control), and Aparigraha (non-greed). Tapas, however, is a Niyama and focuses on self-discipline and perseverance. This distinction highlights the separate areas of personal and social ethics that form the foundation of Yogic philosophy and practice.