You must understand silence as the absolute condition for the true Word, for true revelations. In silence, little by little you feel messages reach you, a voice that begins to speak to you.
It is this voice that warns you, guides you, protects you. If you do not hear it, it is because you are making too much noise, not only on the physical plane, but also in your thoughts and feelings.
In order for this voice to speak to you, you must establish silence within yourself. This voice is sometimes called ‘the voice of silence’, which is even the title given to certain books of oriental wisdom.
When a yogi manages to calm everything within himself and even stop the flow of his thoughts – because in its movement, thought also creates noise – he then hears this voice of silence, which is the very voice of God.