The teachings of Chabad Chassidism open the gates to the chambers of wisdom and understanding, enabling one to know and to recognize--with intellectual comprehension--"He who spoke and the world came into being." This awakens the feelings of the heart so that it is aroused with the emotion engendered by that particular intellectual comprehension. And Chassidism shows the way that each individual -- commensurate with his innate abilities -- can "approach the Sacred," to serve G-d with his mind and heart.
Rabbi Yosef Yitzchak of Lubavitch