What is the purpose of shared folder in asp.net MVC application?

asp.net-mvc-4

Solution

This is merely a convention to say that these views will be "Shared" with other portions of the project(Controllers/Other Views/etc). You can put these views anywhere you would like as long as you reference them correctly.

Problem

I want to know what is the shared folder for in MVC, does it to keep any special views? Does it effect any content and codes in whole project.

Original source