TantraS, 4, 15.0 saṃvidrūḍhasya prāṇabuddhidehaniṣṭhīkaraṇarūpo hi abhyāsaḥ bhārodvahanaśāstrārthabodhanṛttābhyāsavat saṃvidrūpe tu na kiṃcit ādātavyaṃ na apasaraṇīyam iti katham abhyāsaḥ //