Like a few others here, my favorite is also "Do Princesses Dream Of Magic Sheep?" since it is an allusion to the dystopian book "Do Androids dream of electric sheeps?" on which my all time favorite movie Blade Runner is leant to. I never expected to see such an title in MLP.
Well, I don't believe into souls, god or satan. But if things like souls would excist, I don't think that I would give something from me to a immortal being who can do whatever with it just for finding love. So, no, I would not do it.
I have a lavalamp in my room and every year one christmas a string of lights on my window. When I moved to my new appartment, I will buy some more LED lights for the athomsphere.