Chapter 77 of Aleister Crowley's Book of Lies is titled "OZ". The chapter is associated with the Hebrew letter Ayin, which represents the Eye. The chapter discusses the concept of perception and how our views can often be clouded by preconceived notions and biases.
The chapter also makes reference to "The Book of the Law," Crowley's central text of Thelema. The "he-goat" mentioned in the chapter is likely a reference to Baphomet, a symbol often associated with Crowley and Thelema.
As for the mention of "Layla," there doesn't seem to be any clear reference to this specific name in Chapter 77 or in other parts of the Book of Lies. It's possible that there is a personal connection or interpretation that the reader may have made themselves.