The ears of Zeir Anpin The two ears are for hearing good and evil; both are considered as one, as written, “Hashem, bend your ear and hear” (II Melachim 19:16). The innermost ear is traced with curved markings, to slow down the sound as it penetrates the brain, so the brain could notice it and it will not penetrate quickly; for whatever is done quickly is not done with wholesome wisdom.
All winged creatures, who receive the sound from the world, suspend from these ears. They are all called the ears of Hashem, as said, “for a bird of the sky shall carry the sound” (Kohelet 10:20). He asks, the verse “for a bird of the sky shall carry the sound” is difficult to understand. What sound is that here, seeing that the verse begins with, “Do not curse the king, no, not even in your thought” (Ibid.). If it is written “in your thought…… even in your bedchamber,” why then “a bird of the sky shall carry the sound”? There is no sound here, just a thought.