Now, the general rule is that the lowest level of the upper realm, becomes the highest level of the lower realm. This is to say, that the Malchut of the upper world, becomes the Keter of the lower world. For instance, as mentioned before, the sefirah of Keter is desire, and the sefirah of Malchut is speech. From this we understand that the speech of the king becomes the inner motivating desire of the servant or that the speech of the teacher becomes the inner motivating desire of the student etc. Likewise, the last level of Adam Kadmon (Primal Man) becomes the source of Atzilut (The World of Emanation). This is to say that Malchut of Adam Kadmon becomes the Keter of Atzilut.