तथा ब्रह्माहं सतनुस्तदंतं वीक्षितुं ययौ । भित्त्वा पातालनिलयं गत्वा दूरतरं हरिः १७ ।
Brahmā in the form of a swan went up in search of the top. Piercing through the netherworlds and going very far below, Viṣṇu could not see the root of the fiery column.