At the time of the Norman Conquest a revolution took place in the religious life of medieval India. A ware of devotion to Visnu, the one Supreme Lord of the Vedas, spread across the entire subcontinent. Spearheading this movement was a philosopher, saint and devotee – Ramanuja. Herein is described his life and teachings, his struggles against prejudice and persecution, and above all his purity and deep love of God.