Part 13 · Chapter 11

And it is found that of these three heads, the upper head among them, called RDL"A, is called Atik Yomin, for it is the Nukva of Atik Yomin, as above, which is called RDL"A on account of the uncertainties in it. And there is also another explanation: that its body clothes in AA, and it is attained and known to us through AA; but its Rosh, which did not clothe in AA, is not known, for even AA itself does not know it.