Faith is a belief in something even though there is no evidence to prove the belief is legitimate. Many people have faith in god even though they have not seen or met this deity. When you have faith then you are confident in the outcome even though this can not be proven, you are acting on instinct rather than proof.
Those who believe in nothing are very, very jealous and angry at those who believe in something.
Seek not to understand that you may believe, but believe that you may understand.