A portal to another dimension
When there’s a hole in the wall that leads to nowhere, our paranoia goes way, way up. Are there hidden cameras in there, or is the hole there for some nefarious purpose that we don’t know? The guy who posted this image was scared about looking inside of this mysterious hole. What if there was a face on the other side?!
But he didn’t need to worry about anything. Apparently, this hole used to be a fixture for a chimney and fireplace. However, someone renovated the home and completely removed the chimney. This hole was just the uncovered remnants of what was once Santa’s entry into their home.