Viśeṣaṇa-Viśeṣya Bhāva — Qualifier and Qualified
Viśeṣaṇa-viśeṣya bhāva (Sanskrit: viśeṣaṇa = qualifier/adjective + viśeṣya = the qualified/noun + bhāva = relation; 'the qualifier-qualified relationship') is one of the foundational ontological relations in Viśiṣṭādvaita Vedānta.
The Core Relation: In classical Sanskrit grammar, a viśeṣaṇa qualifies a viśeṣya — 'the blue lotus' where blue qualifies lotus. Rāmānuja elevates this grammatical relation to a metaphysical one: ātman and jagat are viśeṣaṇas (qualifiers) of Brahman. Brahman is the viśeṣya (the qualified Reality). Together, they form one organic whole — but Brahman is the substantive and ātman-jagat are its attributes.
Inseparability: A qualifier (viśeṣaṇa) cannot exist apart from its qualified (viśeṣya). The blueness of the lotus exists only in the lotus, not independently. Similarly, the ātman and jagat have no independent existence apart from Brahman — they exist in and through Brahman. This explains Viśiṣṭādvaita's non-dual character: not crude monism (Advaita) but qualified non-dualism.
Śarīra as Viśeṣaṇa: The śarīra (body-soul) relation is the central metaphor for viśeṣaṇa-viśeṣya. The body is viśeṣaṇa of the self; the self is viśeṣya. Similarly, the self is viśeṣaṇa of Brahman; Brahman is viśeṣya. This explains why the Upaniṣad says 'the world is Brahman' — the world qualifies Brahman, not that the world IS Brahman in crude identity.