structural:summarization
Vaishnava Agamas

The Pancaratra Samhitas (literally, five nights) is a genre of texts where Vishnu is presented as Narayana and Vasudeva, and this genre of Vaishnava texts is also known as the Vaishnava Agamas. Its doctrines are found embedded in the stories within the Narayaniya section of the Mahabharata. Narayana is presented as the ultimate unchanging truth and reality (Brahman), who pervades the entirety of the universe and is asserted to be the preceptor of all religions.

The Pancaratra texts present the Vyuhas theory of avatars to explain how the absolute reality (Brahman) manifests into material form of ever changing reality (Vishnu avatar). Vasudeva, state the Pancaratra texts, goes through a series of emanations, where new avatars of him appear. This theory of avatar formation syncretically integrates the theories of evolution of matter and life developed by the Samkhya school of Hindu philosophy. These texts also present cosmology, methods of worship, tantra, Yoga and principles behind the design and building of Vaishnava temples (Mandira nirmana). These texts have guided religiosity and temple ceremonies in many Vaishnava communities, particularly in South India.

The Pancaratra Samhitas are tantric in emphasis, and at the foundation of tantric Vaishnava traditions such as the Sri Vaishnava tradition. They complement and compete with the vedic Vaishnava traditions such as the Bhagavata tradition, which emphasize the more ancient Vedic texts, ritual grammar and procedures. While the practices vary, the philosophy of Pancaratra is primarily derived from the Upanishads, its ideas synthesize Vedic concepts and incorporate Vedic teachings.

The three most studied texts of this genre of Vaishnava religious texts are Paushkara Samhita, Sattvata Samhita and Jayakhya Samhita. The other important Pancaratra texts include the Lakshmi Tantra and Ahirbudhnya Samhita. Scholars place the start of this genre of texts to about the 7th or 8th century CE, and later.