Sri Nisargadatta Maharaj was an influential Indian spiritual teacher and philosopher, known for his teachings on non-duality and self-realization. Born in 1897 in Mumbai, he was a key figure in the Advaita Vedanta tradition, emphasizing the importance of understanding one's true nature beyond the ego and mind. His most famous work, "I Am That," is a collection of dialogues that explore profound spiritual concepts. Nisargadatta's teachings focus on the idea that the self is not separate from the universe, encouraging seekers to look within to discover their true essence and attain liberation from suffering.