'Vruksha' means a tree. In this asana, the body assumes the shape of a tree. So it is called Vrukshasana.
Stand on either leg. If difficulty is experienced to balance the body on one leg, take the support of a wall. Bend the other leg at the knee and place its heel at the root of the thigh of the former leg as shown in the figure. Join the palms and raise the arms straight over the head as if you are making an obeisance to the sky. Straighten the elbows. Inhale slowly. Hold this position for about ten seconds. Then repeat the pose, standing on the other leg. This exercise can be practiced four to six times a day.
(1)The pose tones up all the joints of the body.
(2)It supplies blood to the blood vessels of the toes, the knees, the elbows, etc. in sufficient quantity.
(3)The hands and the legs become flexible by the practice of this asana. It makes the chest shapely.