Part 15 · Chapter 183

As you already know, the angels were created from the voices that issue from the mouth of ZA, and they are from the coupling of kisses, spirit within spirit, which is the interiority of ZA, called voices, and the interiority of the Nukva, called speech. Understand this. And when she has only externality, standing back to back, she is called a mute dove. And you know whence voice and speech come to man — that is the inner body, in which NRN (Nefesh, Ruach, Neshama) are clothed; and when man dies, the inner body departs together with the NRN, and the outer body remains mute.