The goal of fasting is inner unity this means hearing, but not with the ear; hearing, but not with the understanding; hearing with the spirit, with your whole being... The hearing of the spirit is not limited to any one faculty. Hence it demands the emptiness of all the faculties. When the faculties are empty, then the whole being listens. There is then a direct grasp... Fasting of the heart empties the faculties, frees you from limitation and from preoccupation. Fasting of the heart begets unity and freedom.