What type of text are the Yoga Sutras considered to be?

The Yoga Sutras are indeed considered a collection of different aphorisms, which are concise, memorable statements designed to convey philosophical ideas and teachings. Written by the sage Patanjali, the Sutras encapsulate the essence of yoga philosophy and practice in short verses, each addressing different aspects of yoga, such as ethics, meditation, and the nature of the mind. This format allows for reflection and interpretation, encouraging practitioners to delve deeper into the meaning behind each aphorism. Each Sutra builds on the core principles of yoga, guiding individuals on their journey to self-realization and spiritual growth through a structured yet flexible framework.

In contrast, the other options do not accurately describe the Yoga Sutras. They are not a single narrative, which implies a continuous storyline; they do not form a trilogy since they are not divided into three distinct parts; nor are they a historical biography, as they do not chronicle a life story but rather present philosophical and practical teachings.