Yidam is like a special friend that Tibetan Buddhists have. It's not a real person, but more of an imaginary friend that helps them feel happy, peaceful and connected to their spiritual beliefs.
It's like when you have a stuffed animal or toy that you really love and feel close to. You might talk to it or hug it when you're feeling sad or scared, and it helps you feel better. A yidam is kind of like that, but for grown-ups!
Tibetan Buddhists think of their yidam as a special kind of Buddha who is always with them, even when they can't see them. They might visualize their yidam in their minds, imagining what they look like and what they might say to them. This can help them feel more connected to their spiritual beliefs and find comfort during difficult times.
Some people might have a yidam that looks like an animal, like a tiger or a bird, while others might imagine their yidam as a beautiful deity. It's different for each person, but the important thing is that it helps them feel peaceful and happy.