Om Mani Pedme Hum (or Om Mani Pedme Hung), is the most common mantra in Tibet, recited by Buddhists, painted or carved on rocks, prayer wheels, or yak skulls and seen around most usually. Tibetan people, almost all Buddhists, do believe that it is very good to practice the mantra of Chenrezi, the Bodhisattva of Compassion (The protective deity of Tibet), which may, relieve negative karma, accumulate merit, help rescue them from the sea of suffering and achieve Buddhahood. Speaking the mantra loud or silently, spinning prayer wheels with the mantra, and carving mantra into stones are the usual practices.