a dank and wretched pit engulfed in murky gloom. It is one of the primordial objects that sprung from  Chaos  (along with  Gaia  (Earth) and  Eros  (Sex)). Quite a bit more can be found in the  Wikipedia  article. In Prof. Rogers' lectures we hear about Theophrastus Phillippus Aureolus Bombastus von Hohenheim,