Buddhism had its origin in the teachings of Siddhartha Gautama, a Kshatriya caste prince of the Sakya clan; he was born in Lumbini, in the central Tarai Region, about 563 B.C. His father was the ruler of a minor principality in the region. Born a Hindu and educated in the Hindu tradition, Siddhartha Gautama renounced worldly life at about the age of twenty-nine and spent the next six years in meditation. At the end of this time, he attained enlightenment; thereafter, known as the Buddha, or the Enlightened One, he devoted the remainder of his life to preaching his doctrine.
The Buddha accepted or reinterpreted the basic concepts of Hinduism, such as karma, samsara, dharma, and moksha, but he generally refused to commit himself to specific metaphysical theories. He said they were essentially irrelevant to his teachings and could only distract attention from them. He was interested in restoring a concern with morality to religious life, which he believed had become stifled in details of ritual, external observances, and legalisms.
The Four Noble Truths summarize the Buddha’s analysis of the human situation and the solution he found for the problems of life. The first truth is that life, in a world of unceasing change, is inherently imperfect and sorrowful, and that misery is not merely a result of occasional frustration of desire or misfortune, but is a quality permeating all experience. The second truth is that the cause of sorrow is desire, the emotional involvement with existence that led from rebirth to rebirth through the operation of karma. The third truth is that the sorrow can be ended by eliminating desire. The fourth truth sets forth the Eightfold Path leading to elimination of desire, rebirth, and sorrow, and to the attainment of nirvana or nibbana, a state of bliss and selfless enlightenment. It rejoins right or perfect understanding, aspiration, speech, action, livelihood, effort, thought, and contemplation.