Anne Bradstreet's The Author to Her Book

I first read the poem as if a mother was talking to her child, and then I read the poem as if a mother was talking to a piece of writing she wrote. I thought about the many ways that books and children are similar and dissimilar to authors and mothers, respectively. In one way, writing poetry allows the author and it's subject to remain immortal forever, whereas mothers and their children cannot live forever. Did you see any other similarities between the two?