ELI5: Explain Like I'm 5

Nisse (folklore)

Nisse is a little creature from Scandinavian folklore. It's said to be a tiny man with a long beard, a red hat, and a love for helping people (especially farmers). Some people believe that if you leave food out for the nisse on Christmas Eve, he will protect your farm and animals for the whole year.

Nisse is known to be very mischievous as well. If he is not shown proper respect or is displeased in any way, he might play pranks on humans such as hiding things, making strange noises, or even mismanaging farm animals.

In summary, nisse is a magical little creature from Scandinavian folklore that is known for his kind-hearted nature and willingness to help farmers in need. However, it's important to show him proper respect and gratitude, or he might turn mischievous and play pranks on those who disobey him.