Near the end of the poem you're talking about, the old woman uses similes, comparisons using the words "like" or "as," to describe how aged she has become: she says her hands are "like broom sticks," meaning dry and stiff, while her body is "dry, like a carved image." This simile also shows how stiff and wooden her old body has gotten. A carved image is not only dry, but also can't move. I hope I helped you!
