Plane of circulation
Vyana takes pranic energy from the lungs and conveys it through all the bodily systems. It is the vital air responsible for blood flow, glandular secretions, upward and downward movements of the body, and the opening and closing of the eyelids. Vyana carries oxygen in the bloodstream into the capillaries throughout the system. Oxygen and pranic energy are absorbed by the tissues, and waste products are expelled into the blood. This deoxygenated blood is thrown out into the venous system by vyana. Vyana is also the force that carries this wasteladen blood back into the heart and lungs. Vyana produces sweating. We do not sweat only in certain special places but through each and every pore of the body. The only explanation for this is vyana. Sweat cannot move of itself. The air in the lungs cannot force it out, nor will the airs in the stomach, intestines, or anal region. What does, then? It is vyana — present throughout the body and crucial in balancing body chemistry through the processes of blood circulation, sweating, and coughing.