As the kundalini energy increases, as the energy of the psyche becomes more pronounced, which it does as thought becomes eclipsed by silence, all the variant mind states burn away.
The highest type of meditation is done in silence. In silence there are no mantras. Mantras are not essential, but they can be very helpful.
Within silence all things are contained. What appears to our eyes to be life is but a thin curtain, a gauze penumbra, which stultifies our vision, which prevents us from seeing the truth.
When you meditate you can stand back from your desire. When you silence the mind and there is stillness, only then can you tell if a desire is dharma.
If silence only conveys the Self, if all words and thoughts are illusions, why do we discuss it?