A common thing, yet oh, inevitable.
How soon, my Dear, death may my steps attend,
How soon't may be thy lot to lose thy friend,
We both are ignorant, yet love bids me
These farewell lines to recommend to thee,
That when the knot's untied that made us one,
I may seem thine, who in effect am none.
And if I see not half my days that's due,
What nature would, God grant to yours and you;
The many faults that well you know I have
Let be interred in my oblivious grave;
If any worth or virtue were in me,
Let that live freshly in thy memory
And when thou feel'st no grief, as I no harmes,
Yet love thy dead, who long lay in thine arms,
And when thy loss shall be repaid with gains
Anne is saying that when she dies, she wants people to remember her for the good things she did and her best qualities. Similar to what J. Cole said in his song  “Farewell”  about how people will remember him when he’s gone.
Before the Birth of One of Her Children