Yoga exercises are often practiced to ready both mind and body for meditation and concentration. Yoga meditation poses can range from activating poses such as sun salutations and arm balances, to relaxing and calming poses. Activating poses are often practiced in the beginning of a class and stimulate the sympathetic nervous system, otherwise known as the fight-flight-freeze response. When followed by relaxing poses, such as supported back or forward bends, the parasympathetic or relaxation response is activated, enabling one to drop into a more calm and peaceful place. Ultimately, the physical practice with an emphasis on pranayama, mindfulness, and movement is a pathway to moving through emotional and physical tension, preparing the body for a sitting meditation.