In John 20, we read that after Thomas saw the resurrected Jesus, he believed and said to him, "My Lord and my God!" Then Jesus said to him, "Have you come to believe because you have seen me? Blessed are those who have not seen and have believed." If I do not believe, then I do not believe that Thomas actually saw Jesus. If I do believe, then, of course, there is no need for me to see Jesus. What happened to Thomas and what Jesus said to him help me believe in the unseen Lord with my whole heart.