It is believed that after meditating long and deeply under a tree, now known as the Bodhitree, he attained complete spiritual enlightenment and state of ecstasy. He had a foretaste of Nirvana--the extinction of individuality by its absorption into the One Universal Supreme Spirit--and he felt convinced that he was beyond suffering, beyond the transmigration of souls.
經過多年的苦修、冥思，終於在菩提樹下，夜睹明星而成正覺。佛陀四十九年的說法，就是把自己體驗的真理，如實為人類宣示出來，幫助眾生超脫生死煩惱。