The fitness of our hearts and thoughts to receive God's spirit is like that of violin strings. If they are properly tuned, in harmony with one another, then the touch of the bow produces beautiful music. If not, then there is only discord. Whenever our hearts are truly ready to receive God's spirit, they will produce heavenly airs and joyous harmonies -- both in this life and in the spiritual world.
God is Silence. There is a silence of the tongue, a silence of the whole body. There is a silence of the soul and the spirit. The silence of the spirit is when all its movements are stirred solely by Being; in this state it is truly silent, aware that the silence which is upon it is itself silent.