"I BEGAN TO THINK OF THE SOUL AS IF IT WERE A CASTLE MADE OF A SINGLE DIAMOND..." so starts St. Teresa's most celebrated work Interior Castle

INTERIOR CASTLE is one of the most celebrated books on mystical theology in existence. It is the most sublime and mature of Teresa of Avila's works, and expresses the full flowering of her deep experience in guiding souls toward spiritual perfection. In addition to its profound mystical content, it is also a treasury of unforgettable maxims on such ascetic subjects as self-knowledge, humility, detachment, and suffering. But above all, this account of a soul's progress in virtue and grace is the record of a life -- of the interior life of Teresa of Avila, whose courageous soul, luminous mind, and endearingly human temperament hold so deep an attraction for the modern mind.

Hildegard had some prophetic visions which were later explained by the Holy Spirit Himself, I don't pretend to understand them, et al, but I do understand her artwork in which she tried to explain how the Holy Spirit Communicates.When few women were accorded respect, she was consulted by and advised bishops, popes, and kings. She used the curative powers of natural objects for healing, and wrote treatises about natural history and medicinal uses of plants, animals, trees and stones.