 The Hebrew name 'Raphael' means 'God has healed'.The archangel Raphael has traditionally been linked with healing and restoration, and it is clear that Franckenberg, in subtitling his manuscript "Arzt-Engel" ('doctor-angel', a play on "Erzengel", 'archangel'), is aware of this fact and wishes to make it clear to his readers.The work, ostensibly a medical tract, draws on both Paracelsian alchemy and Böhmian mysticism.