After fighting off Mara, an evil spirit who tempted him with worldly comforts and desires, Siddhartha reached enlightenment, becoming a Buddha at the age of 35.
After regaining his strength, he seated himself under a Bodhi tree in west-central India and promised not to rise until he had attained the supreme enlightenment. After fighting off Mara, an evil spirit who tempted him with worldly comforts and desires, Siddhartha reached enlightenment, becoming a Buddha at the age of 35. He spent the rest of his life teaching others about how to achieve this spiritual state.