Faith relates to the will. It doesn't matter what one feels. Faith is the willingness to accept the truth when one is face to face with it. Unbelief, on the contrary, is willful rejection of truth despite all evidences. Unbelief is unwilling to sincerely consider the evidence. But, faith doesn't listen either to feeling or to desire; it listens to the word and responds to it in a willing embrace. Faith judges the fact of truth and doesn't doubt. When doubt arises, it shows the mirror of truth on its face and exposes the insincerity and hollowness of doubt. Therefore, faith overcomes.