Anaal Nathrakh - V.I.T.R.I.O.L

Finally, the Anaal Nathrakh's new record is out in stores. Can't wait to hear it completely. Reading an interview with AN-Singer V.I.T.R.I.O.L. (zum Interview (deutsch)), he told about the meaning of his name. First, Vitriol is an old name for sulfuric acid, and second, it's an acronym for Visita interiora terrae rectificando invenies occultum lapidem - Visit the Interior Parts of the Earth; by Rectification Thou Shalt Find the Hidden Stone. The hidden stone means philosopher's stone.
This motto was used in the Order of the Rose Cross. (more information about the founder at wiki).
There is also a famous picture with some explanations.

(Of course, I'm not responsible for the contents you'll find by visiting the linked pages).