Ārṣṭiṣeṇa’s Siddhi and the Tīrtha-Boons; Sindhudvīpa–Devāpi Brāhmaṇya; Viśvāmitra’s Tapas Begins
स चापि तीर्थप्रवरं पुनर्गत्वा महानृषि: । पीत्वा पय: सुविपुलं सिद्धिमायात् तदा मुनि:
sa cāpi tīrthapravaraṃ punargatvā mahānṛṣiḥ | pītvā payaḥ suvipulaṃ siddhim āyāt tadā muniḥ ||
Y aquel gran vidente, tras volver una vez más al más excelso vado sagrado, bebió una abundancia de leche; y entonces el sabio alcanzó la siddhi, la consumación espiritual.
वैशम्पायन उवाच
Repeated, intentional engagement with sacred practice—here, returning to a foremost tīrtha and maintaining pure, restrained sustenance—can lead to siddhi, emphasizing inner transformation over mere external ritual.
Vaiśampāyana reports that a great sage returns to an eminent pilgrimage site, drinks a large quantity of milk, and thereafter attains siddhi (a state of accomplishment/perfection).