The powerful Creator created all this universe with the help of penances. In ihe same way, the Rishis won ihe Vedas by the power of penanccs.
प्रजापतिरिदं सर्वं तपसैवासृजत् प्रभुः। तथैव वेदानृषयस्तपसा प्रतिपेदिरे॥