The Word must be heard in the silence of the heart, the place in which it can be welcomed and given space so that it may become creative. From earliest times the advice given to those who wanted to learn the monastic way was always "to return to your own heart." This is the interior space for which there are so many different concepts: the inner cloister, the poustinia, the cave of the heart. It is simply "the place of God in us" which each of us will understand in a unique and mysterious way.
~ from THE WAY OF SIMPLICITY by Esther de Waal thanks to G. Grissom