Well, I assume that dream interpretation does change according to one's religion but only because of the fact that dream-signs usually mean different things to different people, and interpreting dream-signs is effected by psychological things such as....morals, beliefs, principles,experiences and such.
I usually like it when a dream interpretor looks more at the emotions and concepts that I mention in my dreams. This leaves more room for an exact interpretation because the confusion of beliefs and religion isn't a problem anymore. It's more about what I felt during and after the dream...which are all signs that make sense to everyone in the same way.
So yeah, I personally feel that religion does effect certain dream signs and should be taken into consideration when dream interpreting.
Although, I suggest still looking into what other people think about the subject...just to make sure you're getting the right info for you.

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