“There are three universal things that make our Lord known to us: One is this Book of the Cosmos. We have heard a small part of its testimony in thirteen flashes from the “Thirteenth Lesson” of the Treatise of Light in Arabic. Another is the Seal of Prophets, blessings and peace upon him, who is the Great Sign of that great book. And the other is the Qur'an of tremendous standing. Now, we should get to know and listen to the Seal of Prophets, blessings and peace be upon him, who is that second articulate demonstration.”