In plain words
“Sahanā vavatu sahanau bhunaktu sahavīryaṃ karavāvahai tejasvināvadhītamastu māvidviṣāvahai Oṃ śāntiḥ śāntiḥ śāntiḥ.”
Let us move about together, let us grow up together, together let us nourish the wisdom we have come to know, together, without discord, let us live in friendship.
That is its meaning. Hoping that you will give such a sacred ideal to the world, and blessing you, I bring My discourse to a close.