Ramanuja’s commentary on the Brahma Sutras, the *Śrībhāṣya*, stands as the great systematic exposition of Viśiṣṭādvaita Vedānta, offering a carefully argued alternative to Śaṅkara’s Advaita. It presents Brahman as a personal, supreme reality—Nārāyaṇa or Viṣṇu—endowed with real, auspicious attributes, rather than as an undifferentiated, attribute-less absolute. In this vision, individual souls (*cit*) and the material world (*acit*) are not illusions but genuinely real, eternally dependent parts or modes of Brahman, often described as forming Brahman’s “body.” The result is a qualified non-dualism in which unity is affirmed without erasing distinction: God, souls, and matter are inseparably related, yet not identical in every respect.

This commentary also serves as the principal theological foundation of the Śrī Vaiṣṇava tradition, grounding the worship of a personal God in the authority of the Brahma Sutras and allied scriptures. By interpreting the Upaniṣads, the Bhagavad Gītā, and the Brahma Sutras in a mutually reinforcing way, it offers a coherent hermeneutic that accommodates both the language of oneness and the language of divine personality and attributes. Ramanuja’s method gives special weight to passages that reveal a gracious Lord who can be approached through devotion, while re-reading non-dual statements as affirmations of a unity that includes real difference.

Philosophically, the *Śrībhāṣya* is marked by rigorous argumentation against rival schools, especially Advaita, rejecting the idea that the world is ultimately illusory or that difference is merely a product of ignorance. Instead, it defends the reality of distinctions while insisting that they never stand apart from Brahman, much as a body never exists apart from its indwelling self. On this basis, the text provides a robust justification for *bhakti* (loving devotion) and *prapatti* (total surrender) as central means to liberation, emphasizing divine grace rather than knowledge alone. Through this synthesis of logic, scripture, and devotion, Ramanuja’s work established the legitimacy and enduring influence of a theistic, qualified non-dual Vedānta within the broader landscape of Indian thought.