Asanas and Mudras play an important role in the Hatha Yoga system. Asanas are postures which maintain and build up muscles of different limbs of the body and Mudras are intended to strengthen the glandular functions as well. So Asanas and Mudras fully strengthen the body. Asanas are many in number. All are not to be practiced by everyone. Every Asana and Mudra has its own place of action. So for the full exercise of the whole body a few Asanas are to be practiced, those Asanas which heal those body parts of ailments. One who pasties regularly some Asanas and Mudras remains healthy? Children are naturally healthy so difficult postures are not necessary for them. Yet now-a-days many infants, as soon as they are out from the wombs of their mothers, suffer from ailments. Therefore, children with ailments are to be taught certain Asanas and Mudras. As a general physical training, Asanas and Mudras in a simplified manner can be taught to children as well as grown-ups of all ages.

                Now a word about Pranayama. All of us must be aware of the greatest value of “Pranic” force in us. It is the real life and life breath. Breathing should be systematic and measured. Then only the bodily and mental function will be proper. Most of us breathe irregularly and wrongly. Pranayama is a difficult and saintly practice. Akin to it simplePranayamas can be easily learned and practiced by all human beings. Even in practising Asanas and Mudras measured breathing is a must. Over and above, additional practices of simple Pranayamas are beneficial for human beings to cure their illnesses, to build up their bodily and mental health and to ensure their longevity and peaceful life. Pranayama is the best exercise for the lungs and hence, purifies the circulatory system.

In the case of the bow posture, we have a position which will also benefit all of the organs and glands associated with digestion and the other metabolic processes. Dhanurasana and its variation stimulate the abdominal organs. They have an excellent effect upon balancing glandular secretion as well.  If the Bow Posture is extended into a rocking action like the Dhanukriya, its benefits include better circulation of the blood stream and the nervous system. The blood is purified if the breath is held out while doing the Ardha, the Incomplete Position, the full Bow Posture or its Kriya. The entire spine is benefited from the coccyx to the high cervical area. The intra-costal area of the ribs is relaxed if the breath is held out. The throat muscles are tensed as well as those of the facial area. Arms and legs are pulled taut by muscular tension. In short, it is a complete glandular-neuron-muscular-skeletal activity. Dhanurasana combines all of the benefits of Sarpa Asana, Sarpa Kriya and Shalabha Asana and variations yet has its own distinctive benefits because of the unique union of hands and feet and the additional arch of the body created by the muscular pressure.