Read it through once

Her face had latterly changed with changing states of mind, continually fluctuating between beauty and ordinariness, according as the thoughts were gay or grave. One day she was pink and flawless; another pale and tragical. When she was pink she was feeling less than when pale; her more perfect beauty accorded with her less elevated mood; her more intense mood with her less perfect beauty. It was her best face physically that was now set against the south wind.