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An architectural copperplate engraving serves as a title page. At the top, a cherub's head is surrounded by garlands of fruit. Below, the Holy Spirit appears in the form of a dove radiating light. The central text is framed by a classical arch. To the left stands a female figure representing Charity, holding an infant with two children at her feet. To the right stands a female figure representing Hope, leaning on an anchor. In the foreground, a seated nun, likely representing Faith or the Church, holds a large crucifix and an open book. The book displays the text: One God, One Faith. The entire scene is set upon a stone pedestal base.
original: "Medulla Animae"
Johannes Tauler was a fourteenth-century German mystic and priest known for his influential sermons on the inner life.
Matthäus Merian was a prominent engraver and publisher; the "heirs" continued his business after his death in 1650.