There are times when Nana dreams something that must be told. There are times when Nana writes a verse that needs display. This is where they are, where they belong.
The way Nana write her dreams is by taking the information she outlines when she wakes and fills in the details that can be filled in, like names, places, etc. The reason she writes dreams in a first person point of view, is because it is so much better than the choppy outline that sits in her note book.