Those who neglect silence bring only a distracted heart and a preoccupied mind to their prayer and, instead of deriving new strength from it, they only offer God a heart full of trifles. Intimate conversation with God is easily stifled if you do not first put an end to exterior chatter; yet, if you love silence and keep it well, your heart will be a temple where God will dwell and become known to you there.
Sit in meditation, but do not think. Look only at your mind. You will see thoughts coming into it. Before they can enter, throw these away from your mind until your mind is capable of entire silence.