You may have been in a weird half dream state, so someone may have been calling to you to wake up, and turning on the light, which makes sense for the light and your grandma calling for you. Our minds can make us hear weird things in our dreams however, it depends whether someone was waking you up, and what they said maybe.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.