As I understand the Kabbalah teachings, which is very rudimentary, before Creation there were 3 beams of light. All mass, all matter, came from the contraction (or inversely the “big bang”) of at least one of those beams of light.
From left field.
Say, no wonder... that player in left field is Y.
Same as the one letter in E-G-Y-P-T that doesn't get along with any of the others. It simply doesn't not rhyme.
If you follow Egypt's etym. trail, you can see that the glyph in the middle is similarly shaped. It's the hands raised in the air with a vertical line underneath to signify that it's an ideograph. In this case representing the very power/life force (ka) of Egypt's creator god Ptah.
Even the name Ptah is spelled the same in Hebrew as the word for an opening, doorway [פתח]. It's the root from which "key" derives.
I mention this because the "Y" glyph is also the image of the meaning of the name Judah: to praise, of casting the hands up into the air.
Which of course loops right back to the very identity of the Jews -- the question-asking people, as Moses in Exo 3:3.
Pharaoh showed Moses the door.
"There's the door!"
Then, when all of the Ys left Egypt, it was lights out for EGPT just on the simple principle of the word.
The Dark Side never learns!