Having explained that the powers (Sefirot) with which God created and governs the worlds appear by way of radiation, we will now explain the principles governing how this radiation appears.
The proposition consists of three parts. Part 1: The Sefirot: This refers to the amount of radiation emitted by the Sefirot. Part 2: They can appear... This refers to the images or likenesses through which they appear. Part 3: But in themselves... This is a general comment on all the images and likenesses through which they appear.