The Smarta tradition is, by its very structure, open to the inclusion of additional deities, yet this openness operates within a defined philosophical and ritual framework. Its foundational practice of Pañcāyatana pūjā—centered on Śiva, Viṣṇu, Devī, Sūrya, and Gaṇeśa, with a possible sixth such as Skanda—already reflects a deliberate inclusivity that transcends narrow sectarianism. These deities are not viewed as rival absolutes, but as equally valid gateways to the same ultimate reality. A practitioner may favor one as iṣṭa-devatā while still honoring the others as fully legitimate manifestations of the divine. This pattern of honoring plurality without fragmenting unity sets the tone for how other forms of divinity can be received.

The philosophical basis for this flexibility lies in Advaita Vedānta, which understands all deities as nāma-rūpa—names and forms—of a single Brahman. From this standpoint, new or regional deities can be integrated so long as they are interpreted as expressions of that one reality, often linked conceptually to the broader Vedic–Purāṇic pantheon. Historically and in lived practice, Smarta communities have indeed absorbed regional and folk deities, as well as later-emerging forms and deified saints, especially when these are seen as particular manifestations of Śiva, Viṣṇu, Devī, or other established gods. Such incorporation may occur through adding them to existing pūjā routines, including them in household shrines, or recognizing them in local observances and festivals.

There is, however, an implicit boundary to this inclusivity. For a deity to be fully integrated in a distinctively Smarta manner, it is typically brought under the interpretive canopy of Advaita and the Vedic–Purāṇic tradition, rather than standing as an entirely independent or incompatible principle. Deities that cannot be reconciled with this non-dual, Brahman-centered vision are less likely to occupy a central place in formal Smarta ritual, even if individuals may still show personal reverence. Thus, the tradition exhibits both breadth and discernment: it is structurally pluralistic and historically adaptable, yet it preserves an inner coherence by continually reading the many through the lens of the One.