This proposition has three parts. Part 1: The folding of the legs of Arich Anpin… This explains the concept of the folding of the legs of Arich Anpin. Part 2: The truth is… How this folding causes what it causes to the vessels. Part 3: It is in this sense… This explains the reason why it was in Arich Anpin that this occurred.
NOTE 1The concept of the folding of the legs takes its meaning from the way the legs of the embryo in the womb are folded up to its chest. Kabbalistically, the legs of a Partzuf are Netzach-Hod-Yesod, while the arms and chest are Chessed-Gevurah-Tiferet. The proximity of the folded legs to the arms and chest signifies how the lower levels are elevated in order to receive power from the higher levels.NOTE 2 There is an apparent difficulty in this Opening since the folding of the legs of the Partzuf of Arich Anpin took place after the emergence of the Partzufim of Atik, Arich Anpin, Abba and Imma, as a preparation for the repair of the Partzuf of Zeir Anpin (see Etz Chayim, Shaar Zeir Anpin ch. 2). Here, however, the folding of the legs of Arich Anpin is explained as a general preparation for the repair of the vessels, out of which all the Partzufim were subsequently built, including that of Arich Anpin. The intent may be that there was already a similar folding of the legs in the overall Arich Anpin or Adam Kadmon in relation to the broken vessels, which were seven Nekudot or “points” in the relative category of Zeir Anpin. Thus in the present Opening, Arich Anpin may refer to Arich Anpin of the ten Nekudim – i.e. to their Keter, which was not broken. This is the source of the upper three Sefirot of the first Atzilut, which were not broken, and which rectify Atzilut-Beriyah-Yetzirah-Asiyah – including Arich Anpin, which is the Keter – of the second Atzilut.Part 1: The folding of the legs of Arich Anpin was what first gave the broken vessels the power to ascend... We see that this raising of the legs was necessary in order to lift up the vessels for the first time, and nothing further was required from Arich Anpin with respect to the vessels. It was to give the vessels the ability to ascend that this folding of the legs was necessary, and from then on, through the power gained thereby, they can rise to all the heights befitting them....making possible all their subsequent ascents. It was this action of folding the legs that initiated the ability of the vessels to ascend.