Luis Alberto Rodriguez: ‘My mother was renowned for tasseography. In preparation for a reading, the cups must be turned upside down after drinking. Gravity does its work, dragging the left-over liquid to the cup’s rim. A map remains for those looking for a sign – unpredictable pathways leaving behind their traces of existence. My mother has attained eminence for her divination abilities. Her readings were, and continue to be, a mystery to me. I’ve seen how others admire her clarity, gift and certainty. They’re comforted when filled with anxiety, and warned when clouds will shade their days’