Zohar Ki Tetze
The Zohar describes Elijah going up to the highest level of Keter to receive great goodness and escort the Shechina down to Malchut with all the good received from above. The angels from Father and Mother, Chokmah and Binah, that are for the יה YH of the name conceal her when Elijah goes down. The angels of the ו Vav, cover her and fly her with the six wings that comes from the אב”ג ית”ץ and the 36 letters that comes from them. They are קרעשטןנגדיכשבטרצתגחקבטנעיגלפזקשקוצית.
The angels from Yessod support the Shechina like the living creatures (Lion, Ox, Eagle and man) support the Holy Throne.
Malchut of Atzilut that is the ה H of the name supports the entire path and Elijah and the angels can’t fly up or down only with her. It’s like the body parts can not move without the soul that brings life and animate the entire body. The light of the Shechina spreads in the sefirot of Malchut to create the movement between upper and lower levels.
The first six letters of the Ana B’Choach comes from the first word of the Torah ‘בראשית’ ‘In the beginning’. The אבגיתץ represents the force/wings that ‘move’ the 36 letters/vessels below and create the channel of light for the Shechina from upper to lower.