‘Then I saw a very bright light and, in this light, a human form of sapphire color which blazed within a very suave rutilant fire. And this bright light penetrated all the rutilant fire, just as the rutilant fire penetrated the bright light, and light and fire penetrated the entire human form, so that they were one single light and one single strength and power.’
— Hildegard [from Scivias: Second Vision of Book II]