זוהר שמות — דף רסט ע”א

The Zohar reveals the secret of the nine palaces formed by the collision of the light of the Supernal Thought with the light of the Curtain. These palaces are neither lights, nor spirits, nor souls, and all lights from the Supernal Thought downward are called Ein Sof. In the secret of the sacrifice, everything is bound and illuminates one another until Thought is crowned in the Ein Sof. At each new moon, an extra share in the sacrifices is given to the Qets Kol Basar so that Israel can unite alone with their King - the goat is Esav's share, given to the other side so that Israel may use their own portion.