Imagine an empty vase. The space inside is exactly the same as the space outside. Only the fragile walls of the vase separate one from the other. Our Buddha-mind is enclosed within the walls of our ordinary mind. But when we become enlightened, it is as if the vase shatters into pieces. The space “inside” merges instantly into the space “outside.” They become one: There and then we realize that they were never separate or different; they were always the same.