Ramanuja is widely regarded as the founder of Vishishtadvaita Vedanta, a school of thought within Indian philosophy that emphasizes the unity and diversity of reality.

Brahman is the central concept in Vishishtadvaita Vedanta, representing the ultimate reality that is both immanent and transcendent.

Vishishtadvaita Vedanta posits that Brahman is the inner controller of the world, pervading and animating it while maintaining its distinctness.

Vishishtadvaita Vedanta holds that Atman, the individual self, is a part of Brahman, sharing its essential nature while retaining its individuality.

Vishishtadvaita Vedanta emphasizes Bhakti Yoga, the path of devotion and surrender to God, as the primary means of attaining moksha.

Vishishtadvaita Vedanta teaches that while individual effort and devotion are essential for moksha, the grace of God is also necessary for its attainment.

Vishishtadvaita Vedanta emphasizes the importance of both knowledge (jnana) and devotion (bhakti) as complementary paths to spiritual realization.

The ultimate goal of Vishishtadvaita Vedanta is moksha, or liberation from the cycle of birth, death, and rebirth, and the attainment of eternal bliss.

The Brahma Sutras, also known as the Vedanta Sutras, are considered the primary scripture for Vishishtadvaita Vedanta, providing a systematic exposition of its philosophical principles.

The 'Sesha-Seshi' relationship in Vishishtadvaita Vedanta refers to the relationship between Brahman, the Supreme Being, and the world, where the world is seen as the body of Brahman, and Brahman is the indwelling soul.

'Prapatti' in Vishishtadvaita Vedanta refers to the act of complete surrender to God, where the devotee entrusts their entire being and destiny to the divine.

Ramanuja is considered the main commentator on the Brahma Sutras from the Vishishtadvaita perspective, providing a detailed exposition of the school's philosophical principles.

'Visesha' in Vishishtadvaita Vedanta refers to the unique attributes and qualities that distinguish Brahman from other entities, emphasizing the richness and complexity of the Supreme Being.

Vishishtadvaita Vedanta posits that Maya is a creative power of Brahman, through which the world is manifested, while Brahman remains the underlying reality.