16 
On Concentration 
Cara Soror, 
Do what thou wilt shall be the whole of the Law. 
You wisely ask me for a special letter on Concentration; 
you point out that I have implied it constantly, but never 
given plain instruction. 
Concentration does indeed unlock all doors; it lies at the 
heart of every practice as it is of the essence of all theory; 
and almost all the various rules and regulations are aimed at 
securing 
adeptship in this matter. 
All the subsidiary 
w 0 r k - awareness, one-pointedness, 
mindfulness and the 
rest-is intended to train you to this. 
All the greetings, salutations, "Saying Will," periodical 
adorations, even saying apo pantos kakodaimonos with a 
downward and outward sweep of the arm, the eyes averted, 
when one sees a person dressed in a religious (Christian) 
uniform: all these come under "Don't stroke the cat the 
wrong way!" or, in the modem pseudo-scientific journalese 
jargon "streamlining life." 
What you really need is the official Instruction in The 
Equinox, and the very fullest and deepest understanding of 
Eight Lectures on Yoga; but these lectures are so infernally 
interesting that when I look into the book for something to 
quote, it carries me away with it. I can't put it down, I forget 
all about this letter. Rather a back-handed advertisement for 
Concentration! 
The best way is the hardest; to forget all this and start 
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