Ramanuja is considered the founder of Vishishtadvaita Vedanta, a school of Vedanta philosophy that emphasizes the unity of Brahman and the world.

Vishishtadvaita is the central concept of Vishishtadvaita Vedanta, which means 'qualified non-dualism'. It refers to the idea that Brahman is both immanent and transcendent, and that the world is a real manifestation of Brahman.

In Vishishtadvaita Vedanta, Brahman is seen as the immanent cause of the world, meaning that Brahman is present within the world and is the source of its existence.

In Vishishtadvaita Vedanta, the soul is seen as a part of Brahman, meaning that the soul is a manifestation of Brahman and is not separate from it.

The goal of human life according to Vishishtadvaita Vedanta is to achieve moksha, which is liberation from the cycle of birth and death and the attainment of eternal bliss.

In Vishishtadvaita Vedanta, the primary method of achieving moksha is bhakti, or devotion to God. This involves developing a personal relationship with God and surrendering oneself to His will.

In Vishishtadvaita Vedanta, grace is seen as necessary for moksha. It is a gift from God that enables the soul to overcome its limitations and attain liberation.

In Vishishtadvaita Vedanta, Vishnu is the primary deity worshipped. He is seen as the supreme being and the source of all existence.

The Bhagavad Gita is a dialogue between Krishna and Arjuna, in which Krishna expounds the principles of Vishishtadvaita Vedanta.

Maya is a key concept in Vishishtadvaita Vedanta. It refers to the illusion that the world is separate from Brahman.

In Vishishtadvaita Vedanta, the guru is seen as a spiritual teacher, a guide on the path to moksha, and a source of knowledge.

Ramanuja is a prominent philosopher associated with Vishishtadvaita Vedanta.

Vishishtadvaita Vedanta is opposed to Advaita Vedanta, a synthesis of Advaita and Dvaita Vedanta, and a continuation of the Upanishadic tradition.

The Upanishads, the Bhagavad Gita, the Brahma Sutras, and the Vishnu Purana are all key texts in Vishishtadvaita Vedanta.

The ultimate goal of Vishishtadvaita Vedanta is to achieve moksha, become one with Brahman, and experience the bliss of Brahman.