A glory is an optical phenomenon, resembling an iconic saint’s halo around the shadow of the observer’s head, caused by sunlight or (more rarely) moonlight interacting with the tiny water droplets that compose mist or clouds. Like a rainbow, a glory is centered on the antisolar (or, in case of the moon, antilunar) point, which coincides with the shadow of the observer’s head. Glories are commonly observed from a high viewpoint such as a mountain, tall building or aircraft. In the picture below the plane I was flying in was low enough for its shadow to be visible on the clouds. You can clearly see the glory on the clouds. When viewed from a plane like this it’s sometimes called The Glory of the Pilot.