Perek 5, Part 4.
The Rebbe Rashab now suggests that even the Middos of Atzilus are Mimalei Kol Almin and offers two different explanations:
1) we are speaking of the Keilim (or: Garmohi) of Middos which are not Ein SOf but Gevul
2) We are speaking in the opinion of the Arizal who says that the seven Middos are Garmohi, even it’s Ohros. MP3