yathā - as; agniḥ - a fire; su-samṛddha-arciḥ - having a full flame; karoti - makes; edhāṁsi - fuel; bhasma-sāt - into ashes; tathā - similarly; mat-viṣayā bhaktiḥ - devotional service in relation to Me; uddhava - O Uddhava; enāṁsi - all kinds of sinful activity; kṛtsnaśaḥ - totally.

“ ‘As all fuel is burned to ashes by a full-fledged fire, all sinful activities are totally erased when one engages in devotional service to Me.’