The real Gabriel is that Spirit of Guidance which is the soul of the Prophets. Its voice is intuition, but to the attentive mind of the Prophet sometimes this voice is so distinct that it becomes much louder than what one hears through the ears. For in their hearts a capacity is produced; in other words, their hearts become as domes which give echo to every word. The heart of the ordinary person does not give that echo; so the inner voice becomes inaudible to one's own soul. As a voice is necessary, so hearing is necessary also; without the hearing the voice is inaudible. The hearing is the capacity in the heart. When the heart becomes as an ear, then it begins to hear the voice that comes from within.