Use "saneness" in a sentence

1. Was she really only a conventional spinster, shrinking back shocked at a touch of naked naturalness? Wasn't there much in what that short-haired child was so passionately saying about the rightness, the saneness, of reaction from horror? Wasn't it nature's own protection against too much death? After all, what was the good of doubling horror, of being so much horrified at the horrible that you stayed rooted there and couldn't move, and became, with your starting eyes and bristling hair, a horror yourself?