Hey kiddo!
Have you ever heard of something called "acheiropoieta"? It's a big word, but it basically means "not-made-by-humans".
Sometimes people talk about special things called "acheiropoieta images". These are pictures or paintings that are said to have been created by something other than a human being.
Some people believe that these images were made by a miracle or a supernatural force, and that they have special powers or are very important in some way.
But other people think that acheiropoieta images were actually made by humans, but they were just really good at it. Sometimes artists from long ago could create paintings that looked so amazing and lifelike, it seemed like they must have been made by something magical or divine.
So you see, acheiropoieta is a fancy word that means something is special because it was made in a very special way, either by magic or by very talented humans.