The women here have healed from their state when they were oppressed by the males of the society and when they had no voice and rights of their own. Now, they speak for themselves and move out of such a society, they gain strength and fight for their lives. They are free and are leaving their past behind to stand out as strong individuals.
Adrienne Rich herself was such a woman who was caught in a very harsh marriage and this poem is just a representation of what she feels and how she wanted to leave her place.