זוהר שמות — דף קפא ע”ב

Rabbi Elazar asks how we know the lower limbs are included in the letter Vav, and Rabbi Shimon answers from the verse 'Remember the Torah of Moses my servant'. Moses only served the Moon after being included in all aspects of the secret of Vav. The priests were chosen from the children of Israel to serve the letter Heh within the Vav, so that all would be one. The children of Israel exist below to open paths, illuminate ways, and draw everything from below upward to unity.