I have received this kind of emails so many times where some temple picture or some motivational forward or some presentation where the one liner says that "Please send 10 copies and see what happens in 4 days." Sometimes these emails also write that if you don't forward some bad luck will happen to you.
I have never ever forwarded such emails to even a single person. When it says so explicitly to forward to many people - makes me even more resistent in doing so.
What's the logic really? Does it even seem that it may have any magical effect? I don't think so! Just another way to increase network usage. Na?