Gestinana

Geshtinanna (also known as Geštinanna or Ngeshtin-ana) is the ancient Sumerian goddess of agriculture, fertility, and dream interpretation, the so-called "heavenly grape-vine". She is the sister of Dumuzid and consort of Ningisida. She is also the daughter of Enki and Ninhursag. She shelters her brother when he is being pursued by galla demons and mourns his death after the demons drag him to Kur. She eventually agrees to take his place in Kur for half the year, allowing him to return to Heaven to be with Inanna. The Sumerians believed that, while Geshtinanna was in Heaven and Dumuzid in Kur, the earth became dry and barren, thus causing the season of summer.