iti - thus; aśeṣa - of all; samāmnāya - the Vedas; purāṇa - and Purāṇas; upaniṣat - comprising the confidential mystery; rasaḥ - the nectar; samuddhṛtaḥ - distilled; pūrva - in the distant past; jātaiḥ - by those who were born; vyoma - in the higher regions of the universe; yānaiḥ - who travel; mahā-ātmabhiḥ - saintly persons.

Thus the ancient saints who travel in the upper heavens distilled this nectarean and confidential essence of all the Vedas and Purāṇas.