Aula Lucis or, the House of Light, is a short but extremely straight-forward description of some alchemical tenets. While it contains the usual asides, veils, and metaphor of other works, some attempt is made to explain it in easily understood terms. Alluding to legal issues in its postscript, and lauding Philalethes, Lully, and others, Aula Lucis is an important manuscript for the practice of alchemy.