Virasana is warrior s pose.

As good for meditation and pranajama.
1.Stay on floor on knees, knees together, feet's divide a such that you can low on floor between theirs.
2..Sit on floor between feet's, as feets are on sides for hips, that inside side for every calf touching for external side a matching hip, wrists are ion knees, palms turn up, does not bend spine.
3.stay  in such pose as more longer, deeply breathe.
4.After return wrist of hands with palms down, put theirs on knees.
5.Cross fingers and stretch hands over head with palms up.
6.Stay in such pose  for minute, deeply breathe.
7.Breathe out, open fingers, palms put on heels a feet, inclining to front, that a chin touching for knees.
8.As in such pose keep for minute, breath normal.
9.on an ending breathe in, rise body, transfer feet's to front, and relax.
10. As in such pose is hard for you stay, thus put one feet on other, and low buttocks on theirs, and after slowly divide feet, leasding theirs in pose on sides for hips, for try to sit, between theirs.
As asana a good for a trigger point cure, as in calves, curing aches, in flat feet, as in stretching ankles and feet you right forming for feet vault.