This project is about The Freedom Of Choice Of Believing and that everyone should have the right to believe in anything they want. Flying Spaghetti Monster is a God. The religion is called "Pastafarianism" where the mainstream religions branded it as a 'cult' as Pastafarians are allowed to believe in more than one God. However, they are not anti-religion nor atheist. They just believe in the freedom of choice of believing in every God.
The concept behind this design is a brain containing the many different religions in the world. "Believe Their Beliefs" is to show that all religions are equal. There is no such things as a greater religion than others.