The study and the widespread dissemination of the wellsprings of Chassidus, -- these are the prelude and the preparation and the vessel for the promise of the prophet, that "the world will be filled with the knowledge of G-d, as the waters cover the ocean bed." This refers to the Torah teachings of Mashiach, who will give the entire Jewish people an understanding incomparably superior to the Torah insights of today.

Igros Kodesh (Letters) of the Rebbe Shlita, Vol. XIII, p. 472