You can check your alignment in this pose with your back against a wall. Stand with the backs of your heels, sacrum, and shoulder blades (but not the back of your head) touching the wall.
Deepen the Pose
You can challenge your balance by practicing this pose with your eyes closed. Learn to balance without any reference to the outer environment.
A partner can help you learn about alignment in this standing position. Have your partner stand beside you and check that your ear hole, the center of your shoulder joint, the center of your outer hip, and your outer ankle bone are in one line, perpendicular to the floor.
Try to recreate the balanced sensation of Tadasana in all the standing poses.
You can improve your balance in this pose by standing with your inner feet slightly apart, anywhere from 3 to 5 inches.
Strengthens thighs, knees, and ankles
Firms abdomen and buttocks
Reduces flat feet
You can alter the position of your arms in a variety of ways; for example: stretch the arms upward, perpendicular to the floor and parallel with each other, with the palms facing inward; interlace the fingers, extend the arms straight in front of your torso, turn the palms away, then stretch the arms upward, perpendicular to the floor, so the palms face the ceiling; cross the arms behind your back, holding each elbow with the opposite-side hand (be sure to reverse the cross of the forearms and repeat for an equal length of time).