Rose Croix 

Though only four, the degrees of the Chapter of the Rose Croix, consisting of the 15°-18°, contain teachings that are very complex. 

The degrees are at once religious, historical, moral and philosophical. 

They consist of Hebrew history, Christian doctrine, compared with other revelatory religions of the ancient world; and the innermost meanings of the most mystical, and controversial, of all the books in the Bible, the Apocalypse, or Book of Revelations.