do religious people really believe?

[fr0d0]

You don't seem to know what faith is, with respect Paul.

To have faith, according to the Xtian tradition, you must have information that you accept to be true. You must trust that information, and you must then also act upon it. With all three, you can then say that you have faith in God.

The less physical evidence you have, the greater intellectual understanding you will need.