Adrienne von Speyr, a renowned mystic and spiritual writer from Switzerland, was received into the Catholic Church at the age of 38 on the Feast of All Saints, 1940, by one of the theological giants of the 20th century, Fr. Hans Urs von Balthasar. He became her spiritual director and confessor until her death in 1967 during which time Adrienne was favored with many gifts of authentic mystical prayer. Balthasar considered one of the central characteristics...