devānāṁ śuddha-sattvānām ṛṣīṇāṁ cāmalātmanām bhaktir mukunda-caraṇe na prāyeṇopajāyate
WORD BY WORD
TRANSLATION
Demigods situated in the mode of goodness and great saints cleansed of the dirt of material enjoyment hardly ever render pure devotional service at the lotus feet of Mukunda. [Therefore how could Vṛtrāsura have become such a great devotee?]
PURPORT
This verse has not purport by His Divine Grace A.C. Bhaktivedanta Svāmi Prabhupāda.