Learning and communicating go hand in hand.
In order to communicate an understanding we need the understanding to start with.
To find a simple way of communicating something we understand, we need to understand it at a deeper level.
There are many things we think we understand until we try to convey our understanding to someone else.
Creating examples, templates, frameworks, pictures, and viewpoints all require us to study and reflect on what we understand.
The simpler and easier it is to communicate is an indication of how well we know something.
Refine your understanding, communicate what you understand, learn from the communication, and refine some more. It is a never-ending cyclical process.