Śrī Kṛṣṇa's nāmādau, Kṛṣṇa's name, form, quality, etc., is not understood by these blunt senses, so how it is to be done? Now, sevonmukhe hi jihvādau. Again jihvādau: beginning from the tongue, controlling the tongue. Just see. It is something peculiar, that you have to understand Kṛṣṇa by controlling the tongue? This is something wonderful. How is that? I have to control my tongue to understand Kṛṣṇa? But it is, the śāstra injunction is there: sevonmukhe hi jihvādau. Jihvā means tongue.
So in order to see Kṛṣṇa, in order to understand Kṛṣṇa, the first business is to control your tongue. Therefore we say don't take meat, don't take liquor. Because it is controlling the tongue. The tongue is the most strong enemy as sense, as perverted sense. And these rascals, they say: "No, you can eat whatever you like. It has nothing to do with religion." But Vedic śāstra says, "You rascal, first of all control your tongue. Then you can understand what is God."