कालस्यानुगतिर्या तु लक्ष्यते ऽण्वी बृहत्यपि ।
यावत्यः कर्मगतयो यादृशीर्द्विजसत्तम ॥ १३ ॥
kalasya-of the eternal time; anugatih-beginning; ya tu-as they are; laksyate-experienced; anvi-small; brhati-great; api-even; yavatyah-as long as; karma-gatayah-in terms of the work performed; yadrsih-as it may; dvija-sattama-O purest of all brahmanas.
O purest of the brahmanas, please also explain the cause of the different durations of time, both short and long, as well as the beginning of time, following the course of action.