Guru Nanak, the founder of Sikhism, is revered as a divine teacher and spiritual leader. Born in 1469, he emphasized the oneness of God, equality of all people, and the importance of living a truthful, humble life. Guru Nanak’s teachings focus on devotion to God, selfless service, and social justice. He advocated for a life of honesty, compassion, and community, rejecting ritualistic practices and caste distinctions.