Theravada Buddhism is the oldest existing branch of Buddhism that draws its teachings from the Pali Canon scriptures. It emphasizes attaining enlightenment through one's own efforts such as meditation. Theravada's key teachings include the Four Noble Truths about suffering and its cessation via the Noble Eightfold Path of right view, intention, speech, action, livelihood, effort, mindfulness, and concentration. Theravada Buddhism is prominent in Sri Lanka, Myanmar, Thailand and lacks worship of persons, focusing on impermanence.