I ntraduction 
Letter A 
March 19, 1943 
Cara Soror, 
Do what thou wilt shall be the whole of the Law. 
I was very glad to gather from your conversation yesterday 
afternoon that you have a serious intention of taking up the 
Great Work in the proper spirit. Your criticisms of previous 
experience in the course of your adventures appeared to be 
singularly sane and just. As I promised I am writing this letter 
to cover a few practical points which we had not time to 
discuss and which in any case I think it better to arrange by 
correspondence . 
I. It is of the first importance that you should understand 
my personal position. It is not actually wrong to regard me as 
a teacher, but it is certainly liable to mislead; fellow-student , 
or, if you like, fellow-sufferer, seems a more appropriate 
definition. 
The climax of my life was what is known as the Cairo 
Working, described in the minutest detail in The Equinox of 
the Gods. At that time most of The Book of the Law was 
completely 
unintelligible to me, and a good deal of 
it-especially 
the third chapter-extremely 
antipathetic. I 
fought against this book for years; but it proved irresistible. 
I do not think I am boasting unfairly when I say that my 
personal researches have been of the greatest value and 
importance to the study of the subject of Magick and