The following instruction concerneth the Science of Union. When this has been accomplished, the Yogi knows himself as he is in reality. Up till now the inner man has identified himself with his forms and with their active modifications. Incorrect knowledge is based upon perception of the form and not upon the state of being. Fancy rests upon images which have no real existence.
Memory is the holding on to that which has been known.
The control of these modifications of the internal organ, the mind, is to be brought about through tireless endeavor and through non-attachment. Tireless endeavor is the constant effort to restrain the modifications of the mind. Non-attachment is freedom from longing for all objects of desire, either earthly or traditional, either here or hereafter. The consummation of this non-attachment results in an exact knowledge of the spiritual man when liberated from the qualities or gunas. A further stage of samadhi is achieved when, through one pointed thought, the outer activity is quieted.