The Foundation Stone (Hebrew: אבן השתייה, translit. Even haShetiya) or Rock (Arabic: صخرة translit. Sakhrah, Hebrew: סלע translit.: Sela) is the name of the rock at the heart of the Dome of the Rock in Jerusalem. It is also known as the Pierced Stone because it has a small hole on the southeastern corner that enters a cavern beneath the rock, known as the Well of Souls. It is the holiest site in Judaism (Midrash Tanhuma, chapter 10); Jewish tradition views it as the spiritual junction of Heaven and Earth.