ornamentedbeing:

 15th Century BOOK OF HOURS – Heart-Shaped When Opened

The little book of hours of Amiens Nicolas Blairie, carefully written on a thin Ruling rose, but modestly decorated with some original illuminations in ink (folio 29), has the curious shape of an almond when it is closed. When it opens, the two halves of the almond bloom to fit the contours of a heart, concrete evocation of the heart of the person praying the prayer that opens.