And now the question comes whether a Gabriel manifested to the Prophets in a certain form. That is true also. There is nothing in this world which is void of form, except God, Who is formless. The form of some things is visible, and of other things invisible. Even thoughts and feelings have forms. You may call them results, but form is always a result. The heart which can hear the inner voice louder than the spoken words can certainly see the form, even the form which is not seen by every soul.