judith butler in undoing gender

From Judith Butler's book Undoing Gender, p1

...about the experience of becoming undone in both good and bad ways. Sometimes a normative conception of gender can undo one's personhood, undermining the capacity to preserve a livable life. Other times, the experience of a normative restriction becoming undone can undo a prior conception of who one is only to inaugurate a relatively newer one that has greater livability as its aim.