The yamas and the niyamas are the restraints and observances of a yogic lifestyle. They are the foundation with which a yoga practice is based upon. The five yamas are ahimsa (nonharming); satya (truthfulness); asteya (nonstealing); brahmacharya (sexual moderation); and aparigraha (nongrasping). The five niyamas are saucha (purity), samtosha (contentment), tapas (dedication), svadhyaya (self-study), and Ishvara pranidhana (devotion to the highest Self). Yoga Journal has a detailed article on the eight limbs of yoga at https://www.yogajournal.com/practice/the-eight-limbs
