Which term refers to the idea of moral restraint in yoga?

The term that refers to the idea of moral restraint in yoga is Yama. Yama is one of the foundational components of the eight limbs of yoga as outlined in Patanjali's Yoga Sutras. It encompasses ethical guidelines and universal moral principles that guide practitioners in their interactions with others and the world around them. These principles include non-violence, truthfulness, non-stealing, moderation, and non-possessiveness. This system of moral restraint encourages yogis to cultivate a sense of discipline and ethical responsibility before delving into more advanced practices and spiritual pursuits.

Other options, while integral to the practice of yoga, do not specifically define moral restraint. Niyama, for instance, refers to personal observances or codes of conduct and focuses on the individual's relationship with themselves rather than their interactions with others. Asana pertains to the physical postures practiced in yoga, and Dharana refers to concentration or the practice of focused awareness. Each serves a distinct purpose within the framework of yoga, but Yama specifically emphasizes the moral integrity essential for a holistic practice.