In order to convey thought to others, man uses speech, or writing or some other physical means of expression; or, in some cases, as in telepathy, thought is transmitted, and received through and by the subtle body.
The God-man does not convey thought, but Truth, which he either awakens in the individual whom he is helping through deep, inner experience, or which he transmits directly from the super-conscious to the conscious, from the spiritual to the physical, by means of either the physical eye, the physical touch or the spoken word.
When he speaks, Truth is more powerfully manifested than when he uses either sight or touch to convey it. For that reason, ‘Avatars’ usually observe a period of silence lasting for several years, breaking it to speak only when they wish to manifest the Truth to the entire universe. So, when I speak, I shall manifest the Divine Will, and a world-wide transformation of consciousness will take place.
-Aw, Vol 18, No. 1, p 28