The Prase

St Hildegarde poetically describes the formation of the prairie: “It develops when, in the evening, the sun withdraws its rays from the upper part of the world, when already the dew is approaching, when the sun gradually descends on the rocks and heats them up strongly”. (Physica ch XI)

Saint Hildegarde speaks especially of the prase in preparations, such as the one with lard against blows where the stone must be placed in the mixture. For such use, both the polished stone and the pendant can be used.