During the intermediate blessings, one needs to request, for ו־ו Vav-Vav is there – one represents the Masters of Writing, and one represents the Masters of Sealing. And they are higher Vav (=6) and lower Vav (=6), incorporating 12 parts.
Three first-ones – the head and two arms, three latter-ones – the body and two thighs.
Then he retires from the presence of the King. Because of this, one needs to give [Var. retreat ] three steps backwards.lBT Yoma 53b And the mystery of the word:... (Gen. 49:33) and he gathered his feet to the bed...