The normal power of the light gives a balanced view of things, a very dazzling light takes away the beauty of some objects while it enhances that of others. So it is with dimness of light. Further in its view it manifests each time differently under the influence of light and shade. If a person would stand amidst ten mirrors and his photograph be taken from each mirror, each of them will differ from the other. Again if a person will pose for a photograph a hundred times in the day in the same pose a hundred photographs will be produced, and although of the same pose, yet differing the one from the other owing to the difference of light and shade.