To know a species, look at its fears. To know yourself, look at your fears. Fear in itself is not important, but fear stands there and points you in the direction of things that are important. Don't be afraid of your fears, they're not there to scare you; they're there to let you know that something is worth it.
Humanity does not suffer from the disease of wrong beliefs but humanity suffers from the contagious nature of the lack of belief. If you have no magic with you it is not because magic does not exist but it is because you do not believe in it. Even if the sun shines brightly upon your skin every day, if you do not believe in the sunlight, the sunlight for you does not exist.