No, I haven't got any source... Unfortunately you can't read anything about postludium's lyrics on the internet...I've done just a bit of listening... The words are pretty clear!
I'm italian, latin is very similar to my language! Plus I've studied latin for 5 years in high school.
In any case
FACIO SPIRITUS OBLATUS it's
I make (FACIO, from FACERE, to make, to do) my spirit (SPIRITUS) as, like (QUOMODO) an offering (OBLATUS, participle of OBLARE, to offer)
also (ETIAM, conjunction, you can read etiam as ""ezeam"") taken away (TOLLUNTO, participle of tollĕre, tollĭto, tollitōte, tollunto) through sacrifice (EX SACRIFICIO. "ex is "from, through") .
I hope my explanation and thoughts are useful!
In any case, the translation makes sense
Happy new year to everyone!!