You will be able to understand this through what I have already said in connection with the successive concealments produced by the Line of Measurement: each successive degree of concealment causes new effects according to the concealment in question (see Opening 30, Part 2). The Likeness of Man could only emerge in this way in its various aspects following this gradation and a succession of increasing degrees of concealment, until they reached the level called Atzilut, but not above this.
Thus Rabbi Chaim Vital wrote that even though we use the terms “ear” and “eyes” in the case of Adam Kadmon, this is only to “break through” and make sense to the human ear – to give us a faint indication of something that is intrinsically beyond our grasp (Etz Chayim, Shaar Ozen, Chotem, Peh ch. 1, p.34a, TaNTA ch. 1, 20:3). For these terms do not properly apply except where the light stands on a level that relates to the lower realms so that the lower realms can emerge from there in accordance with the law of gradual progression.
But here above (on the levels of the lights of SaG and the worlds of Vision and Hearing) the use of these terms is purely figurative inasmuch as this is the place of the root of these phenomena below.