At the beginning of his Seśvaramīmāṃsā, Veṅkaṭanātha tries to synthetise what he (and Rāmānuja) calls Pūrva and Uttara Mīmāṃsā, with the further addition of the Devatā Mīmāṃsā.
In this connection he needs to address an apparent divergence, namely that between the siddha and sādhya interpretation of the Veda. In other words: Does the Veda always convey something to be done? Or does it always convey something established? The unity of the three Mīmāṃsās and of the Veda as their basis does not allow for a different interpretation of the statements in the Upaniṣads and in the Brāhmaṇas.
Veṅkaṭanātha cites Rāmānuja in order to show that there is no real opposition and that the sādhya-aspect is parasitical upon a siddha one. The example he reuses from Rāmānuja is that of taking action in regard to a hidden treasure: One starts acting only after having known that the treasure is really there. Thus, the sādhya element (taking action) depends on the siddha one (the acquired cognition of something existing).
At this point he also quotes from anoter Vaiṣṇava author, namely Parāśara Bhaṭṭa. His Bhagavadguṇadarpaṇa is a commmentary on the Viṣṇusahasranāma and here comes the quote: