Bitter Grapes (3/29/2020) Posted on March 29, 2020March 20, 2020 by Millicent Bitter Grapes O my soul, they found a way to make sugar out of sugarcane. They learned how to weave silk from the matter of mulberry leaves. Be patient. Bitter grapes become halva with time. *halva Sweetmeats. Rubailer (2016), Rubai #2, page 157.