All material things are made of dust

Just as material things are made of dust, too are our perceptions and thoughts mere dust. Just as it takes only a moment to wipe the dust from the surface of a mirror, so it takes only a moment to become enlightened, the moment all defiled intentions are cleared from our consciousness, we will see ourselves in the mirror of perfect truth. ---  Master Hsing Yun,  "Describing the Indescribable"