Who is Grandmother Sue from The Dance of the Dissident Daughter: A Woman's Journey from Christian Tradition to the Sacred Feminine and what is their importance?

Grandmother Sue, Kidd's maternal grandmother, rejoiced at Sue's birth, exclaiming, "It's a girl!" She repeats this story to Sue at her 96th birthday, a story that comes back to Sue when she is visiting the Skoteino Cave in Crete.