Lion Pose (Simhasana) is a seated yoga posture where you kneel on the floor, place your palms on your knees, spread your fingers like a lion's claws, and then open your mouth wide with a roaring "ha" sound and a stretched tongue to the chin, all while fixing your gaze between your eyebrows. This practice is known for strengthening the throat, face, and lungs, and is said to improve communication, relieve tension in the face and neck, and support the thyroid gland.