ABSTRACT
The next step is called Pratyâhâra. What is this? You know how perceptions come. First of all there are the external instruments, then the internal organs, acting in the body through the brain centres, and there is the mind. When these come together, and attach themselves to some external thing, then we perceive that thing. At the same time it is a very difficult thing to concentrate the mind and attach it to one organ only; the mind is a slave.
