I'll be looking forward to your essay! It sounds interesting, and I was kind of disappointed in how the "power of love" concept turned out in the books.
Good point about Lily. In the past I recall people wondering why Lily's sacrifice was so special, when surely there had been other mothers who died to protect their children, and it turned out that the choice was what made the difference. Although I'm not sure that I buy Harry's sacrifice providing a sort of blanket protection over all the Hogwarts defenders. That seemed to be stretching the sacrifice/protection concept a little too far.
Good point about Lily. In the past I recall people wondering why Lily's sacrifice was so special, when surely there had been other mothers who died to protect their children, and it turned out that the choice was what made the difference. Although I'm not sure that I buy Harry's sacrifice providing a sort of blanket protection over all the Hogwarts defenders. That seemed to be stretching the sacrifice/protection concept a little too far.