Virabhadrasana 2 or Warrior 2 is a wonderful standing posture that creates strength in the arms and legs. This pose also stretches the shoulders, hips and groins. It builds stamina and concentration. Warrior 2 also helps develop balance and stability and improves circulation and respiration.
This practice incorporates all of the standing poses in the Ashtanga sequence. It's great for feeling grounded. You can do this alone or incorporate it with other sequences to increase the length of your practice.