Okay, imagine you're playing with blocks, and you make a rule that says you can only use blue blocks to build a tower. This is like a law, because it tells you what you can and can't do. Metalaw is kind of like a rule for the people who make laws.
Just like you have rules for playing with your blocks, there are rules for making rules for everyone to follow. These rules are called metalaw. It helps people understand how laws should be made and what factors should be considered when creating them.
So, metalaw is like the boss rule for all the rules. It's important because it helps make sure that the laws being created are fair and make sense for everyone. Just like how you make sure your rules for playing with blocks are fair so everyone can have fun!