Part 11 · Chapter 69

Thus, just as we call the whole of ZA the letter Vav of the HaVaYaH that encompasses the entire world of Atzilut, as mentioned above, so too the Tiferet within him is called the Vav of the particular HaVaYaH within his own ten Sefirot. Now, his Tiferet was likewise a Vav without a head, for his body was very small, like a Vav without a head.