When My youngest grandson was borne, he was having trouble breathing. So they took him to the neonatal intensive care unit. Unable to be there 24/7, we prayed that angels watch over him. When he finally came home, his electronic toys (which were clearly turned off) would often begin playing music.
One day I was taking a picture of him (see picture below). As hard as I tried, I could not get him to look at the camera which I was holding. He was focused on something to his upper left, but I could not figure out what it was....I saw nothing there. However when the picture was developed, he was focused on what looks like angel wings.