Vinyasa is the unique linking of one asana to the next in a serpentine flow. It is more than a simple set of physical maneuvers. It is a dynamic marriage of our internal and external worlds. Vinyasa is an outward expression of the subtle movement of life force. It is a manifestation of prana. Vinyasa orchestrates balance. A balance of strength and flexibility, lightness and heaviness, movement and stillness. Through vinyasa one may know the vibration of life. This integration manifests when the act of breathing and movement cease to be separate entities. The two actions converge to create a symphony of seamless unity. Each action encourages the other. They exist as one. The mind is then set free and the practice may become a rhythmic dance.

In order to understand vinyasa one must start with the gross aspects and through refinement one may gain knowledge of its subtleties. Vinyasa begins with an understanding of the physical set of movements prescribed as links between asanas. Through repetition this action becomes familiar to the body on a cellular level. Vinyasa assists in creating heat which allows more freedom of exploration within the asanas. It also brings the body back to a neutral position between postures. Vinyasa is like an "etch-a-sketch". After exiting from asana, the body's screen is cleared and prepared for entry into the next. Without linking this movement with breath. the action remains within the physical realm. There is joy in developing our physical bodies, yet to discover vinyasa's magic one must explore the breath simultaneously. When this marriage is successfully achieved, the action becomes one of spirit and the physical practice acts as a conduit for a deeper exploration of our core identity.

Source: "Ashtanga Yoga - The Practice Manual" by David Swenson