The prophetic vision was so instituted because all ten Sefirot are a complete cycle of government emerging from Eyn Sof, blessed be He, and returning to Eyn Sof, blessed be He. Now, if you count the levels from the concealment (Tzimtzum) onwards, the first will be Keter, the second Chochmah, and so on until the end. But if you view the steps as leading to the ultimate future revelation after the entire cycle – for this is where the entire cycle leads – the first step after the concealment is the very first to approach the end and is thus the furthest away from it.
Inasmuch as it is close to the head, it is called Keter, but because it is furthest from the end, it is called Malchut. So it is in the case of all of them. Thus the descent of the worlds under the government of the Sefirot one after the other turns out to be their ascent, as will be explained presently.