THE BOOK OF THE TRIGRAMS OF THE MUTATIONS OF THE TAO WITH THE YIN AND THE YANG Here is Nothing under its three forms. It is not, yet informeth all things. Now cometh the glory of the Single One, as an imperfection and stain. .. But by the Weak One the Mother was it equili- brated. Also the purity was divided by Strength, the force of the Demiurge. 41