will be achieved in the Messianic Age. In higher spiritual Worlds (Seder hishtalshelus), the souls and angels sense this, and seek to channel Divine flow down the chain of Worlds. Therefore, Shuv, even though it is an exile for the light to descend into the vessel, is the ultimate purpose of Creation. The terms "Ratzo" and "Shuv" come from the Biblical description of the angels in the vision of Ezekiel (1:4-26), when he beheld the Divine chariot (Merkavah). These angels "ran and returned". In this explanation, they desired to ascend to God, but returned down to their station, to fulfil their purpose. In daily spiritual life too, man seeks dveikus (cleaving) with God, and then returns with this inspiration to fulfil his or her tasks in the World. Here the human soul is the "ohr", the body the "kli", and this realm presently an exile for the soul. The dynamics of Ratzo and Shuv are felt by the angels and man, but also apply to any spiritual emanation. The "Seder Histalshelus" describes the continuous descending chain from the Infinite to our finite World. In each World, the 10 Sephirot shine. Each World unfolds from the previous, with the lowest Sephirah (Malchut-"Kingship"-fulfilment of the plan in reality) of one World, becoming the highest Sephirah (Keter-"Crown"-the supernal Will of the plan in that World) of the next, lower World. Within each World too, the spiritual chain descends down the 10 Sephirot, with the illumination of one giving birth to the next, lower Sephirah. Ohr and Ma'ohr - Two levels of Nullification of the Light to the Luminary The "Ohr" ("Light") stems from the "Ma'ohr" ("Luminary"), the source of the light. Traditionally, the Mashal (parable) given to explain this relationship, is the relationship between the sun and the light that it gives off. However, technically speaking, the light that comes from the sun is not the perfect example for the Ohr, since it has already passed through a "Nartik" ("Sheath/Shield"), a level that reduces the intensity of the revelation of the sun. In truth, the Ohr that exists in the parable of the sun is the light of the sun that exists in the sun itself. The light that we see from the sun has already been limited in its quality and therefore lacks the "Bittul" ("nullification") of the true Ohr to its origin. Rather, this Ohr, being that it has been limited