In a very poetic and concealed way, Rabbi Shimon explains the process of the Light ‘traveling’ with singing from the upper three to the lower six, Zeir Anpin and Malchut.
The light of the Chokmah sent out from Binah to Zeir Anpin and the first step is called ‘Sowing’ or ‘Seeding’ because it starts a process of expansion. The first stage is called the point/dot of ‘חולם’, ‘cholam’. Cholam is a Nikud, ‘vowel’ that gives sound to the letter, meaning it vibrates it with Light. This is the first sound of Zeir Anpin. The Cholam represented by a dot above the letter.
The next step is Shuruk and the dot from above is now moved to the left and the middle of the letter. The upper light is now inside the vessel. This makes another kind of sound on Zeir Anpin and the ‘vessel’/ letter receives the ‘seed’.
The third step joins the right and the left and it is called Chirik. The Light fills Zeir Anpin and the sounds is released, meaning expressed in this world.
The Vav is the letter that represents Zeir Anpin.
Rabbi Shimon describes this process as opening the eyes. Chokmah receives the Light from Keter and it concealed until Binah delivers it to Zeir Anpin and reveals it. This revelation from the concealed to the revealed is called by Rabbi Shimon, opening of the eyes. The eyes is the highest and most sensitive sense in the body, physically and spiritually. It connects us to Chokmah, which literally means wisdom. Thanks to Rabbi Shimon, we now understand the term eye-opening.