This is an excerpt from Four Somatic Divisions of Man - Lesson 4, and it need it's own post. So powerful.
If an individual understands nothing else about this teaching, about the structure and function of ensemble of forces, about the centers or the energy which functions in the centers, he can still accomplish the completion of his individualizing process. The completion of the process is the awakening of the Fire. Anyone can enkindle that Fire by learning to be still. With no knowledge of the structure , of function, or the effect in his own members of the force he activates, an individual can accomplish his own awakening by remembering one simple rule: ALL AN INDVIDUAL'S FORCES WILL FLOW TO THAT LEVEL UPON WHICH HE SUSTAINS CONCENTRATION.
Once my son came to me and asked me to tell him a few words what the greatest secret was. I replied in one word: CONCENTRATION."
Concentration is the secret of secrets, but do not overlook another word in our simple rule: SUSTAINED CONCENTRATION. We are not talking about fifteen minutes now and again. We are talking about concentrating on a single focus week in and week out, month in and month out. You must hold to your center like a dog to a root.
If you need to demonstrate this rule in your own life, go ahead and focus on something you want to create. Work up great confidence in yourself; it is justified. Anything is possible within the range of your potentials. Nothing can stop you, not the doubts and laughter of your friends and loved ones, nothing. Even if everyone thinks you are crazy, you can do anything, if you focus your attention and hold it. Your forces will flow into configuration and your desire will take form. The only limit to what I am saying is your basic state and your ability to concentrate.
This is not a mental formulation. On the mental level this rule is worthless. But, if you apply it on the feel-know level, nothing can stop you. The amazing thing is that no knowledge of structure and function is necessary to accomplish your purposes. Our mental pride balks at that, but we do not need intellectual understanding to accomplish this. The mental understanding is helpful in preventing confusion, in restoring perspective, but follow the rule first, and then add the mental roadmap if needed.
When we try to describe the symbol Fire we are forced to face the limitation of the intellect. Practice and meditation are more valuable here than intellectual concepts. If I want to leave you with the idea of Fire, I must leave you with a practice. Be still. Sustain concentration on the subtlety of the Real Self. That is the way to understand the baptism by Fire.