In Theravada Buddhism, "Buddha" refers to one who has become awake through their own efforts and insight, without a teacher to point out the dharma (Sanskrit; Pali "dhamma"; "right way of living"). A samyaksambuddha re-discovered the truths and the path to awakening and teaches these to others after his awakening. A pratyekabuddha also reaches Nirvana through his own efforts, but does not teach the dharma to others. An arhat needs to follow the teaching of a Buddha to attain Nirvana, but can also preach the dharma after attaining Nirvana. In one instance the term buddha is also used in Theravada to refer to all who attain Nirvana, using the term Sāvakabuddha to designate an arhat, someone who depends on the teachings of a Buddha to attain Nirvana. In this broader sense it is equivalent to the arhat.