Sec. 1. The influence of light as a sacred symbol. 75 Sec. 2. The idea of purity connected with it. 75 Sec. 3. Originally derived from conditions of matter. 76 Sec. 4. Associated ideas adding to the power of the impression. Influence of clearness. 76 Sec. 5. Perfect beauty of surface, in what consisting. 77 Sec. 6. Purity only metaphorically a type of sinlessness. 78 Sec. 7. Energy, how expressed by purity of matter. 79 Sec. 8. And of color. 79 Sec. 9. Spirituality, how so expressed. 79 CHAPTER X.--Of Moderation, or the Type of Government by Law. Sec. 1. Meaning of the terms Chasteness and Refinement. 81 Sec. 2. How referable to temporary fashions. 81 Sec. 3. How to the perception of completion. 81 Sec. 4. Finish, by great masters esteemed essential. 82 Sec. 5. Moderation, its nature and value. 84 Sec. 6. It is the girdle of beauty. 84 Sec. 7. How found in natural curves and colors. 84 Sec. 8. How difficult of attainment, yet essential to all good. 85 CHAPTER XI.--General Inferences respecting Typical Beauty. Sec. 1. The subject incompletely treated, yet admitting of general conclusions. 86 Sec. 2. Typical beauty not created for man's sake. 87 Sec. 3. But degrees of it for his sake admitted. 87 Sec. 4. What encouragement hence to be received. 87 CHAPTER XII.--Of Vital Beauty:--First, as Relative.