LIBER LXI VEL CAUSAE – The Preliminary Lection (A.’.A.’.) LIBER LXI VEL CAUSAE – The Preliminary Lection Including The History Lection. 6 Sections – Section 1, Introductory – The Order – Text Number One – A .’. A .’.… 6 Sections, Aleister Crowley, Argentum Astrum