The military victory is obvious but Chanukkah also has a hidden message. If Chanukkah has remained a holiday throughout the generations, that is a sign that we celebrate not just what was revealed in those days, but what continues to our times. Indeed, we must understand the miracle of the concealed world (the miracle with the oil), because that is the point of the entire holiday.
A non – Jew, no matter how powerful he is, has only power over the physical world. He cannot burn the letters of the Torah scroll, they ascend into the air. Thus he can only burn the parchment.
by Rabbi Joseph B. Soloveitchik