Red coral increases Agni and Pitta (but usually not excessively) and decreases Vata and Kapha. It strengthens the blood, manow, bones and the reproductive system (particularly for men). It aids in digestion and circulation and also helps build up the muscle mass.
Red coral increases ones resolve, will power and work capacity. It helps calm the emotions and creates motivation and determination so that we carry our actions out to the end. It increases the warrior spirit within us.
Red coral can be used to promote energetic yogic practices like mantra, meditation and pranayama. It provides motivation and vitality to pursue the spiritual path and gives the self-discipline and self-examination necessary to take this pursuit to a deeper level.