Speak in such a way

ऐसी बानी बोलिये मन का आपा खोय ।औरन को सीतल करै आपहुँ सीतल होय ॥*aisī bānī bōliyē mana kā āpā khōya ।**aurana kō sītala karai āpahum̐ sītala hōya ॥*

In plain words

Speak in such a way that the mind gives up its own self: a word that cools others and leaves you cool too.