Here's another clip from the introduction (pp. 3-4):
"One of the show's trademarks is to leave questions unanswered: Was Scully's cancer cured by a miracle or by alien technology in 'Redux II' (5x03)? Were Father Joe's visions really from God in I Want to Believe? While frustrating fans, such ambiguity also leaves open the possibilities for viewers of all persuasions. Questions are posed, issues are raised, but answers are never delivered on a silver platter. As in life, there are clues along the way, open to interpretation depending on your preconceptions and prejudices. In the end, when the credits roll and issues remained unresolved, the question ultimately turns back to the audience itself: what do you believe?"