True story:
When I was about 5 years old in a Sunday school class, one of the children noticed a reflection of the overhead electric light in a window. The reflection appeared to be floating in the sky.
"What's that in the sky?" asked the child.
"Oh, that's a light from heaven," said the teacher.
"It is not," I thought to myself, "it's just a reflection," but even at that age, I knew enough not to make trouble by contradicting the teacher.
At the end of the class, I lingered long enough to note that when the teacher turned off the overhead light, the "light from heaven" simultaneously went out.