Nathamuni was a prominent figure in the history of South Indian Vaishnavism, known for his contributions to the Alvar tradition. He lived during the 9th century and is celebrated for compiling the works of the Alvars, a group of poet-saints who expressed deep devotion to Lord Vishnu. His efforts helped preserve and promote the teachings of these saints, which emphasized love and devotion. In addition to his compilation work, Nathamuni is credited with establishing the Yogic practices that are integral to the Vaishnavite tradition. He founded the Kanchipuram temple, which became a significant center for worship and learning. His legacy continues to influence the spiritual practices of many devotees today.