Sutra is a Sanskrit term that refers to a short, concise statement or aphorism. In the context of yoga, sutras are often used to convey profound spiritual or philosophical teachings in a succinct and memorable way. The most well-known example is the Yoga Sutras of Patanjali, which consists of 196 sutras that outline the path of yoga and the attainment of spiritual liberation. Sutras are designed to be easily memorized and serve as a guide for practitioners on their spiritual journey.