Vata carries the traits of air and space. As the wind is cold, dry, light, rough and mobile, so too is vata. As space is subtle and all-pervading, vata is as well.
Vata’s primary quality is movement. The other two doshas are incapable of movement without vata; so, any movement in the body surely has some vata component. This includes speech, voluntary actions (like walking), and involuntary actions (like blinking, breathing, expulsion of wastes, pumping of the heart and the sense of touch).