For the Chance of Union offers a selection of papers from the eleventh biennial National Ordo Templi Orientis Conference (NOTOCON) of the United States Grand Lodge of O.T.O., held in the Valley of Orlando, Florida, in 2017 EV. The papers in this volume cover a wide range of esoteric subjects including Goetic and Heptarchial magick, with example rituals; O.T.O.'s history, from inspirations tracing back to the Templars and the Crusades, to a ritualistic retelling of how the Three Triads have been repopulated since the interregnum period; plus celebrations of wine, gender identity, and song! Deputy Grand Master Lon Milo DuQuette entertains with his account of "success is thy proof," while U.S. National Grand Master Sabazius shares Saturday evening's keynote address. Together these papers represent some of best modern practical and scholarly work available on Ordo Templi Orientis, Thelema, and the magick of Aleister Crowley.The first NOTOCON conference took place in 1997 EV in Akron, Ohio, and has since been held on alternate years in different cities around the United States. For the Chance of Union is the sixth collection of papers from the national conference to be made available, following the inaugural volume Beauty & Strength for the 2007 EV conference.Ordo Templi Orientis is an international fraternal order of men and women devoted to the pursuit of individual liberty, the study of magick, and the promulgation of the Law of Thelema. Founded in the early twentieth century, it has been shaped by such leading lights as Carl Kellner, Theodor Reuss, Aleister Crowley, Karl Germer and Grady Louis McMurtry.