When Krsna speaks on the Battlefield of Kuruksetra, to the materialistic person it appears that this is simply talk between two friends, but actually it is a river of nectar flowing down from the mouth of Sri Krsna. Arjuna gave aural reception to such vibrations, and thus he became freed from all the illusions of material problems.
From The Nectar of Devotion, by Srila Prabhupada