Briefly, the idea involves the conception that the nature of the soul is light, and that light is the great revealer. The yogi, through steady practise in meditation, has reached the point where he can at will, turn the light which radiates from his very being, in any direction, and can illumine any subject. Nothing can therefore be hid from him and all knowledge is at his disposal. This power is therefore described as: [253]

1. Illumination of perception. The light of the soul pours forth and the man on the physical plane, in his brain consciousness, is thereby enabled to perceive that which before was dark and hidden from him. The process may technically be described in the following concise terms:

1. Meditation,
2. Polarization in the soul or egoic consciousness,
3. Contemplation, or the turning of the soul-light upon that which is to be known or investigated,
4. The subsequent pouring down of the knowledge ascertained, in a "stream of illumination" into the brain, via the sutratma, the thread-soul, silver cord, or magnetic link. This thread passes through the mind and illumines it. The thoughts engendered in the automatic response of the chitta (or mind stuff) to the knowledge conveyed, are then impressed upon the brain and the man, in his physical consciousness, becomes cognizant of what the soul knows. He becomes illumined.

As this process becomes more frequent and steady, a change takes place in the physical man. He becomes more and more synchronized with the soul. The time element in transmission recedes into the background and the illumination of the field of knowledge by the light of the soul and the illumining of the physical brain, becomes an instantaneous happening.

The light in the head increases in a corresponding degree and the third eye develops and functions. On the astral and mental plane a [254] corresponding "eye" develops, and thus the ego or soul can illumine all the three planes in the three worlds as well as the soul realm.

2. Lucidity of consciousness. A man becomes lucid and clear sighted. He is conscious of a growing power in himself which will enable him to explain and solve all problems, and not only this, but "lucidly to speak" and thus become one of the teaching forces of the world. All knowledge, consciously acquired by self illumination must be shared, and clearly imparted to others. It is the corollary of illumination.

3. The shining forth of insight. This gives a new angle on the subject and a most important one. It is the definition of the capacity to "see into" a form, to arrive at that subjective reality which has made the objective sheath what it is. This insight is more than understanding, sympathy or comprehension. They are but the effects of it. It is the capacity to pierce through all forms and arrive at that which they veil, because that reality is identical with the reality in oneself.