prak-prior; kalpa-the duration of Brahma's day; visayam-subject matter; etam-all these; smrtim-remembrance; te-your; muni-sattama-O great sage; na-not; hi-certainly; esah-all these; vyavadhat-made any difference; kalah-course of time; esah-all these; sarva-all; nirakrtih-annihilation.