זוהר בראשית — דף רמו ע”א

Asher represents the World to Come, the place that all bless and toward which all aspire. There is the bread of affliction and the bread of delight, the Tree of Life and the Tree of Death, and likewise in Torah. The degree of Yesod is called the Master of the world who completes all the poor. The Oral Torah is called earth and bread of affliction, while the Written Torah is the bread of delight. Asher completes what was lacking in Gad, and through his rich bread he provides royal delicacies for Israel.