A great and learned Jew once remarked:
Were a man to be elevated to heights of the universe and all seven heavens be opened for him to see all their wonders and to become familiar with all their hidden corners, his happiness and satisfaction could still not be complete, unless he were given permission to return home and tell others of all that his eyes have seen.

Biography of the Rav Yisrael Meir Kagen, the Chafetz Chaim