Thought it was related, but isn't: Temple Isle Glagolitic inscription. :D
Ogniu, napełnij mi serce męstwem.
Ogniu, oczyść mnie z niegodliwości.
Ogniu, spal mnie jeśli jestem niegodny.
Fire, fill my heart with manliness (bravery).
Fire, cleanse me of wickedness.
Fire, burn me if I am unworthy...