It is important to understand and grasp that although the Zohar explains all the details of each world at length, the statements of the Zohar are always focused on the souls of the people in that world. When mention is made, and explanations are given of other categories, this is only in order to understand the measure that the souls receive from them. As for those matters which do not relate to the receiving of the souls, the Zohar does not utter even a single word about them. Consequently, you should understand everything presented in the Book of the Zohar only in relation to the receiving of the soul.2Much of the Zohar discusses the divine system allowing for the created beings (souls) to receive supernal light and life-force from the Creator.
The Zohar Describes Only What Happens Within Us
Baal HaSulam's Preface to Zohar 5:5