While Anna faces the dreaded Evil Dominant Male, Elsa's battle is with the insidious force of low self-esteem. The prevailing opinion in society is that women's main problem is that they don't think highly enough of themselves. Elsa can't use her powers effectively until she is able to "let it go" and accepts just how awesome and wonderful she is. You go girl. *sigh*Therumancer said:That said I get the impression that Elsa can do whatever she wants with Ice when she concentrates, and the thing she is focusing on happens, but due to her subconscious the power leaks and does whatever it's going to do. The gloves probably work by being a psychological focus, not because the clothing blocks her powers, but because he mind views them as doing so which keeps her subconscious under control. Throughout sci-fi and fantasy there have been similar things. That said the movie is not very explicit in setting up it's concepts, just beating you over the head with it's "messages" which was the intent of the film more than the story.
The song (which is quite catchy and well-produced) it just a great big anthem to female narcissism.