I saw an angel appear in bodily form close by my left side .... He was not large, but small, and extremely beautiful," Teresa wrote. "His face was aflame with fire so much that he appeared to be one of the highest ranks of angels, those that we call seraphim or cherubim. Their names, angels never tell me, but I'm well aware that in heaven there are great differences between different types of angels, though I can't explain it.