Okay kiddo, so Ynglism is a religion that some people follow. It started a long time ago in a place called Scandinavia, which is in Europe.
In Ynglism, they believe in something called the Ynglinga Saga, which is like a story book about their gods and their adventures. They believe in a lot of different gods like Odin, Thor, and Freya. Each god has their own special powers and things they're in charge of.
People who follow Ynglism like to do things to honor their gods, like having festivals or making offerings to them. They also think that you should be brave and honest, and treat other people with respect.
Ynglism is a pretty old religion, but some people still follow it today because it's an important part of their culture and history.