What does this disturbing dream mean (sexual in nature- you've been warned)?

Last night I had a... very disturbing dream. I remember it in great detail, as it freaked me out. I won't give all the details, but here's a synopsis:

There's a girl I've had a crush on for a couple years IRL. I'm a minister, so I'm not into the whole sex-before-marriage thing, and I'm 17, so I'm too young for marriage, so I've never seriously considered dating her.

Anyway, we're having some sort of party for her in this backwoods town somewhere in South America. It's the town's religious custom to, every so often, have a person sacrifice some part of his or her body to some god or other they have. However, this year/decade/whatever's candidate has somehow died. The high priest, or someone, decides to let my crush pick who loses what as a replacement- apparently it's in honor of her party. She chooses me, and she chooses for me to lose my genitals.

The town has apparently done this before, for they offer her a choice of what to lose: one testicle, both testicles, both testicles and scrotum, or everything including the penis and pubic hair. She goes for everything and grins at me. So I'm grabbed from behind and put on this altar, and while I can't see it happening, I can feel every second of it (this isn't unusual, I've felt pain in dreams before). Dear God, it was the creepiest thing ever. It felt like my junk actually went dead- I couldn't feel it anymore, as if it really had been removed. In my dream, I looked, and they hadn't even left a scar- nothing left at all. Apparently my crush had to lose something too, since I saw them cutting off one of her nipples.

At this point I woke up, shaking uncontrollably and heart pounding harder than it does when I'm in the gym. (In fact, my hands are shaking a bit as I type this.) I'm not sure I can look at her again, I'm so shaken up by this dream. What in God's name could it mean? Or does it mean anything? I don't normally remember my dreams this vividly, so I get the feeling my subconscious is trying to tell me something.