Mimamsa is a word that means "to think deeply about things" in a language called Sanskrit. It is an Indian way of thinking that is very old and helps people understand what they should do in their lives.
Let's pretend you have a toy that you really like to play with. Mimamsa would be thinking about how to play with your toy in the best way possible. You might think about what the toy is made of and how it works. This is like thinking about the rules for how you should play with your toy so that you can have the most fun and learn the most from it.
In Mimamsa, people think about what the best way is to do things like pray or perform sacrifices. They also think about how to understand old stories and religious texts so that they can learn important lessons and make good choices in their daily lives.
Mimamsa is a way of thinking that helps people figure out what is right and what is wrong. It helps us to think deeply about how we can live our lives in a way that is good for ourselves and others.