We are "day workers [Eruvin 65a]." Day means light. Our work is to illuminate, to enlighten the world with the light of the Torah. Besides the necessity of maintaining our own selves properly, with G-d's help - being what we ought to be - our whole avoda is to be privileged to develop pupils who are firmly based people, devoted with heart and mind to the inner kavana, the intention or purpose of our existence. Our pupils must know that it is not sufficient to study the Revealed Torah and to cherish the Sacred by observing mitzvot; there must also be avoda sheb'leiv, the service of the heart, davening.
From “HaYom Yom”: Compiled and arranged by the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson, of righteous memory, in 5703 (1943) from the talks and letters of the sixth Chabad Rebbe, Rabbi Yosef Yitzchak Schneersohn, of righteous memory. [Chabad.org]
