The TAO That can be told is not the eternal TAO. The name that can be named is not the eternal name. The unnamable is the eternally real, the Source, the O-region of heaven and earth. Naming is the mother, origin, of all worldly, material things. Free from desire, you experience the unknown, the hidden mystery. The Chinese call this MIAO. Caught in desire, you see only the manifestations. Yet mystery and manifestations arise from the same source. This source is called Darkness, darkness within darkness, deeper than deep, mystery of mysteries, and the Gateway to the unknown. There is NOTHING to understand. Therefore the TAOist who has nothing to say remains still.