I suppose when your talk to your pastor he might ask you what do you base your faith on. You might lead him to the First Church Of Evolution
http://www.fcefaith.org where the written words of the Prophet Charles Darwin are recognized as sacred writings among those who believe they have descended form lower animals. As a follower of the Prophet you could sell your point with explaining why you believe the creation of transitional evidence through speculation and imagination is a solid foundation for your faith. Reiterate the fabrication of new imaginary creatures as it is always excepted as solid evidence. Then your might explain to the congregation that the book Genesis is just wrong based on your imagination. This could possibly prove to the pastor and congregation that the miracle called life itself is just dreamed up. Good Luck ABO