Buddha, originally known as Siddhartha Gautama, was a spiritual teacher in ancient India who founded Buddhism. He is revered for his teachings on overcoming suffering and achieving enlightenment, which he shared after attaining a profound state of understanding under the Bodhi Tree. His life story emphasizes the importance of compassion, mindfulness, and the pursuit of wisdom. The core principles of his teachings, known as the Four Noble Truths, guide followers on a path to spiritual awakening and inner peace, making Buddha a central figure in the lives of millions around the world.