זוהר בראשית — דף קמז ע”ב

Rabbi Shimon explains that “Jacob left Beer-sheba” refers to the west, the Shemitah year, and “he went to Haran” to the year of orlah, since he left the domain of holiness for another. A large part of the page, a Tosefta, describes the White Head that engraved three letters, alef, yod, nun, forming Ayin (“nothing”), and the bent letter nun called Beer-sheba, which is filled by Jacob; Haran is the well below, the place of judgment. Arriving at Bethel, Jacob “encountered the place,” that is, the dwelling of the sun; “of the stones of the place” are the twelve upper stones, and “at his head” refers to the four sides of the world, with three stones on each side.