Why they were forgotten is a mystery. They forge a living link between the physical and energy body and provide important directives that are vital in any serious yoga practice. The Sanscrit word Vayu means wind, space or air. Vayu is also the name of the Hindu God of the Wind. However the manifestation of the vayus in the human body, their function, and how they relate to our yoga practice are questions that do not resolve into a simple or single answer. Beyond what is seen something subtle exists. Becoming sensitive to the subtle is the heart of all yoga practice. The ten vayus are vital to this endeavour. They bring a quiet alertness to the mind, enhance the way we breathe, and create a vertical center. The beauty of this practice lies in its simplicity and in the order and truth it brings to both body and mind.
Source: Orit Sen-Gupta (with permission of Vijnana Yoga International)