Which limb of yoga emphasizes the importance of ethical practices in personal behavior?

Niyama focuses on personal observances and ethical practices that guide individuals in their behavior, fostering a positive relationship with oneself and the surrounding community. It comprises guidelines that promote self-discipline, spiritual growth, and moral values. Key principles under Niyama include cleanliness, contentment, austerity, self-study, and surrender to a higher power. By adhering to these practices, individuals can cultivate harmony within themselves, which is foundational for their yoga journey.

The other options, while integral to the yoga practice, serve different purposes. Asana pertains to the physical postures and poses that enhance flexibility and strength. Dhyana refers to meditation and the practice of focused attention, fostering mental clarity and tranquility. Pranayama involves breath control, essential for managing energy and enhancing focus during practices. Each of these limbs plays a significant role in the overall practice of yoga, but Niyama is specifically centered around ethical behaviors and personal conduct, making it the correct choice.