In this way – Seeing the movements of that light enables one to understand the influence of the corresponding attribute on the government of the worlds at that time. For just as the government of the worlds shifts from kindness to justice or mercy according to the time, so movements are visible in the Sefirot according to the time, and when the prophet sees them, he understands what they mean. All of the various powers involved in the government of the worlds change according to the time.
Not only may the overall government shift between kindness and judgment. There are also changes in each of the individual attributes according to the time, and these are expressed in the movements of the lights. This is visible because of the desire of the Supreme Will to reveal to His creatures how He governs the world.