I believe that angels are forms, images, and expressions through which the essences and energy forces of God can be transmitted and that, since there are an infinite number of these forms, the greatest service anyone can pay the angelic host is never consciously to limit the ways angels might appear to us.
It is better to live a holy life than to talk about it, Lighthouses do not ring bells and fire cannons to call attention to their shining — they just shine.