Numen is a fancy word that some people use to talk about something that they think is holy or powerful. It's like a magic feeling or energy that makes something special.
Let's say you go to a cathedral, and it's really quiet and peaceful, and you feel like there's something special in the air. That's numen!
It's kind of like a feeling, but it's also more than that. People think numen comes from gods or spirits or other mystical things that we can't see. But even if you don't believe in those things, you can still feel numen in lots of places!
Some people think that certain objects, like special rocks or statues, can have numen too. This is why some people like to keep souvenirs or trinkets from places they've been, because they think these objects have a special energy or power.
Ultimately, numen is all about how we feel about the world around us. It can help us see things in a new way, and make us appreciate the amazing things that are all around us!