Try the use of mythology, such as the three sisters who represent the three fates, or the repetitive use of fairy tales such as cinderella. I'm taking Pre-AP english 9 this year, and we had this same prompt.
The supernatural is portrayed in many instances, but a good example is that of the three sisters that read Esperanza's palm to foretell her future. This is what the three sisters of FATE from Green Mythology did as well. They are usually associated with destiny and mortality.