Who in the film "The Da Vinci Code" does Robert Langdon say, "You are the secret"?

Bernsoi, The answer to that is Jesus Christ did NOT have any human descendants! He never married, He never became a Father. So this film is just and only F I C T I O N!!!!!

Jesus Christ had descendants? How is that? I find that fact very interesting

Can we have the question in English?

excellent movie. and as usual, Tom Hanks was also excellent.