The Tree Pose is also known as Vrksasana (vrik-SHAHS-anna), vrksa meaning tree.
The Tree Pose helps strengthen your thighs, calves, ankles and back. It can also increase the flexibility of hips and groin area. With consistent practice, both your balance and your concentration can be improved. This pose is recommended for women with sciatica and flat feet.
Draw right foot up and place sole against inner left thigh; if possible, press right heel into inner left groin, toes pointing toward floor. Center of pelvis should be directly over left foot. Rest hands on top rim of pelvis. Make sure pelvis is in neutral position, with the top rim parallel to floor.
Lengthen tailbone toward floor. Firmly press right foot sole against inner thigh and resist with outer left leg. Press hands together in Anjali Mudra (AHN-jah-lee MOO-dra). Gaze softly at a fixed point in front on the floor about 4 or 5 feet away. Stay for 30 seconds to 1 minute. Step back to Tadasana (Mountain Pose) with an exhalation and repeat for same length of time with legs reversed.
This is one of my favorite yoga poses ever. It really works my brain because I have to keep myself balanced both physically and mentally!