ELI5: Explain Like I'm 5

Normal morphism

A normal morphism is like building a new Lego creation using only the same shape and color of Lego blocks. When we want to create a new thing using the same blocks, it's important that they fit together properly and don't have any extra pieces sticking out that don't belong there.

Similarly, in mathematics, a normal morphism is a way of transforming one mathematical object into another using only compatible parts. We want this transformation to be smooth and well-behaved, so that we don't get any strange or unexpected results.

Just like with Lego blocks, there are rules that must be followed when creating a normal morphism. The objects being transformed need to have certain properties and the way they fit together needs to follow certain rules. If these rules are not followed, then the transformation may not work properly and we may not get the expected results.

Overall, a normal morphism is an important mathematical tool for creating new objects from existing ones, as long as we follow the rules and ensure that everything fits together properly.