How to get $user for Bouncer?

Question

Laravel

Hello! I'm new to Laravel and there are some things I don't understand. Please help me study the documentation.
To use Bouncer, you need to pass the $user variable to the method. The question is where do I get this $user, what should be stored in this variable.
Here is the link .
I believe that this is a model call, but how to do it right?
Who used Bouncer, please answer...
How to disable the user class methods Store, Edit, Destroy, Create, Update, and leave only index and show ?
Thanks to.