YOGA FOR YELLOWBELLIES. 
  
FIRST LECTURE. 
  
  
     Do what thou wilt shall be the whole of the Law. 
     Let us begin this evening by going briefly over the ground covered by 
my first four lectures. I told you that Yoga meant union, and that this 
union was the cause of all phenomena. Consciousness results from the 
conjunction of a mysterious stimulus with a mysterious sensorium. The 
kind of Yoga which is the subject of these remarks is merely an expansion 
of this, the union of self-consciousness with the universe. 
     We spoke of the eight limbs of Yoga, and dealt with the four which 
refer to physical training and experiences. 
     The remaining four deal with mental training and experiences, and 
these form the subject of the ensuing remarks. 
     2. Before we deal with these in detail, I think it would be helpful to 
consider the formula of Yoga from what may be called the mathematical, 
or magical standpoint. This formula has been described in my text-book 
on Magick, Chapter III., the formula of Tetragrammaton. This formula 
covers the entire universe of magical operations. The word usually 
pronounced Jehovah is called the Ineffable Name; it is alleged that when 
pronounced accurately its vibrations would destroy the universe; and this 
is indeed quite true, when we take the deeper interpretation. 
     Tetragrammaton is so called from the four letters in the word: Yod, 
Hé, Vau, and Hé. This is compared with the relations of a family—Yod, the 
Father, Hé, the Mother; Vau, the Son; and the final Hé, the Daughter. (In 
writing she is sometimes distinguished from her mother by inserting a 
small point in the letter.) This is also a reference to the elements, fire, 
water, air, earth. I may go further, and say that all possible existing 
things are to be classed as related to one or more of these elements for 
convenience in certain operations. But these four letters, though in one 
sense they represent the eternal framework, are not, so to speak, 
original. For instance, when we place Tetragrammaton on the Tree of Life, 
the Ten Sephiroth or numbers, we do not include the first Sephira. Yod is 
referred to the second, He to the third, Vau to the group from 4 to 9, and 
Hé final to the tenth. No. 1 is said to be symbolised by the top point of 
the Yod. 
     It is only in No. 10 that we get the manifested universe, which is thus 
shown as the result of the Yoga of the other forces, the first three letters 
of the name, the active elements, fire, water and air. (These are the three 
'mother letters' in the Hebrew alphabet.) The last element, earth, is