Misbâh ul-arvâh, or The Lantern of Spirits, is a comparatively little known Sufi didactic Persian poem written in the 12th century by the next to unknown Shaikh Shams ud-dîn Muhammad b. Îl-Tughân Bardasîrî Kirmânî. It is not a very long poem, covering only 1099 double verses (bait), but it contains both a quite comprehensive compendium of Sufi teachings and a very interesting description of the soul’s journey to the Other World. The latter furnishes fascinating parallels with Dante’s Divina Commedia. The book gives a detailed description of the contents of the poem, with many examples of it’s eloquent verse in translation. The main part of the book, however, gives a critical edition of the Persian text, based on the twelve oldest known manuscripts that contain the poem, the eight oldest of which are dated, making a detailed reconstruction of the original text possible.