What is the purpose of Bandhas in yoga?

The concept of Bandhas in yoga primarily refers to "locks" used to manage the flow of energy within the body. When practiced correctly, Bandhas help to create internal pressure and maintain energy containment, which can enhance the benefits of asanas and pranayama. By engaging the Bandhas, practitioners can direct energy upward and sustain it during various practices, leading to increased stability and focus in both physical and meditative aspects of yoga.

The other options relate to important aspects of yoga but do not accurately define the specific role of Bandhas. While they have a role in opening energy channels or supporting physical strength and relaxation, these concepts are not the primary purpose of Bandhas, which is distinctly about the control and management of energy flow in the body.