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.
The ultimate ground of faith and knowledge is confidence in God
Faith is building on what you know is here so you can reach what you know is there
Let nothing disturb thee, nothing affright thee all things are passing; God never changeth
will gather myself around my faith, for light does the darkness most fear