What if Chrysalis was the Satan(Christian verersion) of MLP? There are facts(and general assumtions) that point to this.
-All canon aliorns have been seen as divine beings. Notice how Chrysalis and the changeling race all have wings and horns, just like alicorns, but more corrupted. Satan was an angel of God's.
-A transformation can not only show a shift of physical appearance, but also phsychological condition(HULK SMASH). Chrysalis shifted from the kind and loving Candence to Big-bad-queen-of-all-things-evil. This might represent Satan turning corrupt and rebelling against god.
-Canterlot is positioned on a mountain. Being the highest community known in the kingdom, as well as its capital, and the most prosperous, and ruled by goddesses, this could be represented as heaven. Notice at the end of Chrysalis' invasion, she was cast off the mountain and into the distance. This could be an example of when God threw Satan and the rebels out of heaven.
-The changelings biggest weapon are illusions, deception, and overall playing dirty. Satan is known for playing tricks as well(Adam&Eve, etc)
I know that was a lot of interpretations most of you would just exploit things I forgot to mention, but it is an interesting idea I came up with. Thank you for reading this far, have a nice day.
Updated by SirAntagonist