Final answer:
Chakras are energy wheels in the body that concentrate prana and are linked to the movement of energy in yoga.
Step-by-step explanation:
The chakras are the energy wheels in the body where there is a concentration of prana. In yoga, there are several limbs or aspects, including the first limb which refers to the restraints or ethical guidelines. The chakras are not specifically mentioned in the first limb of yoga. Instead, they are considered part of the subtle body and are linked to the movement of energy.
Learn more about Chakras in yoga