Who is Grandmother Yasmina from Dreams of Trespass: Tales of a Harem Girlhood and what is their importance?

As Fatima's mother's mother, she lives in a rural area and is greatly relaxed, compared to the other women in Fatima's life. She tells Fatima about the negative sides of life in a harem, including that there are multiple wives which means that a woman has to wait several nights for the opportunity to cuddle with her husband. Yasmina is one of eight wives.