Okay, so Datsan is a special place where people go to pray and meditate. It's like a big building where people take off their shoes and then go inside. Inside the Datsan, there are different rooms where people can sit and think or pray.
People go to Datsan when they want to feel peaceful, calm, and connected to something bigger than themselves. This might be because they are feeling sad, worried, or want to be thankful for something good that has happened.
There are different kinds of Datsans all over the world, and they all have different names and styles. Some are very colorful and have lots of gold and decorations, while others are very simple and plain.
One thing that all Datsans have in common is that they are places for people to feel connected to something spiritual or religious. Some Datsans are for Buddhists, some are for Hindus, and some are for people from other religions or beliefs.
So, if you ever want to feel peaceful or connected to something bigger than yourself, you might want to visit a Datsan. Just remember to take off your shoes before you go inside!