This pose is often disliked by yoga students. They are embarrassed by the look of the pose and the sounds made during the pose. However, it is a powerful asana which can release deep blockages.
Physically, simhasana unlocks the facial structures, shoulders, arms, hands, knees, ankles, and toes. Allergies wiping out your eyes and nose? This pose can open up these areas. Eyes, hands and shoulders feeling the strain of your hours at the computer? Give a modified version of this pose, while at the computer, a try. You will be surprised at how well it can relieve that eye and shoulder tension. Spend the afternoon walking around the mall or taking a hike outside? The full version can ease the knees, ankles and feet. Looking to obtain and maintain tone of your face and neck? This pose will help with keeping the face and neck looking youthful.
Energetically, simhasana opens up the entire chakra chain if you bring up the breath from the lower abdominal area. It prepares the body for the practice of the three major bandhas, Jalandhara, Mula, Uddiyana.
Give this asana time, and you will be amazed.