The evidence of things not seen. Being sure of what you hope for and what you cannot see. Being able to look beyond what is in front you, and believing that there is something better on the other side, even though you can' see it. It surpasses the limitations on the mind set by man. Faith is something that atheists either have no understanding of or fear, and most of the time its both.
My mind isn't limited so much by what other people say, or by what science may say, I have the ability to think beyond logic and my mind can surpass all limitations set by man. I know how to hope and believe, I know what is truth, I recognize wisdom, I have faith.