Okay kiddo, so have you ever heard the phrase "treat others how you want to be treated?" That's kind of like what comity means. Comity means being friendly and respectful to other people or countries, even if you don't always agree with them.
For example, let's say you and your friend both like the same toy. You could fight over it and be really mean to each other, or you could be kind and figure out a way to share the toy so that you both can play with it.
In the same way, countries can have disagreements or conflicts with each other, but they can also practice comity by being polite and respectful in their interactions. This helps them have a good relationship even if they're not always on the same page.
Comity is important because it helps people and countries get along better, and it can also help avoid conflicts and tension. So always remember to be kind and treat others with comity!