Guru is the Self. Sometimes in his life a man becomes dissatisfied and not content with what he has, he seeks the satisfaction of his desires through prayer to God. His mind is gradually purified until he longs to know God, more to obtain his grace than to satisfy his worldly desires. Then, God’s grace begins to manifest. God takes the form of a Guru and appears to the devotee, teaches him the truth and, moreover, purifies his mind by association. The devotee’s mind gains strength and is then able to turn inward. By meditation it is further purified and it remains still without the least ripple. That calm expanse is the Self. The master is within; meditation is meant to remove the ignorant idea that he is only outside. If he is a stranger whom you await, he is bound to disappear also. What is the use of a transient being like that? But so long as you think you are separate or that you are the body, an external master is also necessary and he will appear to have a body. When the wrong identification of oneself with the body ceases, the master will be found to be none other than the Self. So long as you seek Self-realization the Guru is necessary.
Guru is the Self. Take Guru to be the real Self and your self as the individual self. The disappearance of this sense of duality is the removal of ignorance. So long as duality persists in you the Guru is necessary. Because you identify yourself with the body, you think that the Guru is also a body. You are not the body, nor is the Guru. You are the Self and so is the Guru. This knowledge is gained by what you call Self-realisation. For one who, due to rare, intense and abundant love, has complete faith in the glance of grace bestowed by the Guru, there will be no suffering and he will live in this world like Puruhuta (a name if Indra, the king of the gods). Peace, the one thing which is desired by everyone, cannot be attained in any way, by any one, at any time or in any place, unless stillness of mind is obtained through the grace of the Sadguru. Therefore, always seek that grace with a one-pointed mind.
A realised one sends out waves of spiritual influence, which draw many people towards him. Yet he may sit in a cave and maintain complete silence. We may listen to lectures upon truth and come away with hardly any grasp of the subject, but to come into contact with a realized one, though he speaks nothing, will give much more grasp of the subject. He never needs to go out among the public. If necessary he can use others as instruments. Silence is ever speaking. It is a perennial flow of language, which is interrupted by speaking. These words I am speaking obstruct that mute language. For example, there is electricity flowing in a wire. With resistance to its passage, it glows as a lamp or revolves as a fan. In the wire it remains as electric energy. Similarly also, silence is the eternal flow of language, obstructed by words. What one fails to know by conversation extending to several years can be known instantly in silence, or in front of silence. Dakshinamurti and his four disciples are a good example of this. This is the highest and most effective language. There are two kinds of Siddhis and one kind may well be a stumbling block to realization. It is said that by Mantra, by some drug possessing occult virtues, by severe austerities or by samadhi of a certain kind, powers can be acquired. But these powers are not a means to Self-knowledge, for even when you acquire them, you may quite well be in ignorance.