Cur Ergo (Song)

Decoded by the members of the Stellar Paradigm Discord Server.

How it was solved
If you have noticed in the MV, two words (and a number) appear.

/hatchkey/ /613/

It is also written like that in the beginning of the lyrics Dasu had uploaded in Sound Cloud of the lyrics.

These two things were in fact, the two keys. Since there was a number, we believed it was Gronsfeld, which was Vigenere except it used numbers, ABCD being 0123. Basically, the Vigenere equivalent keycode is "BGD." (Ok, I"m getting off-topic now)

Hatchkey was the alphabet key, meaning that instead of "ABCDEFG...XYZ" it's "HATCKEYBDFGIJLMNOPQRSTUVWXZ"

Using this as either the Keyed Vigenere (using BGD as the Cipher key and hatchkey as your alphabet key) or the Gronsfeld Cipher (using hatchkey as your alphabet key and 613 as the Cipher Key) to solve.

Translating the whole cryptic song, you get the lyrics above.

-By Seraphis333

(Lyrics was not written and posted, it belongs to the rightful owners, I just wrote how to solve if anyone cared.)

Some Trivia?
Cur Ergo has some biblical references.

For example, Proverbs 6 was Proverbs 6:9 in ESV version:

"'How long will you slumber, O sluggard?'"

Deuteronomy 5 was Deuteronomy 5:25 in ESV version:

"'Now therefore, why should we die? For this great fire will consume us; if we hear the voice of our Lord our God anymore, than we shall die.'"

Both verses have references the reference to the lyrics below:

"(Deu 5)"

"But now, why should we die?" "A great fire will eventually consume us all""and if I hear you speak one more time""I'd be glad to fucking die""""(Prv 6)""How long will this bastard sleep,""after wounding my hearts to pieces?" Dasu herself confirmed this true as true.