Here I go in my attempt of translating those words (they are nouns with suffixes):
TARJA = girl name (could be the famous soprano Tarja Turunen)
hurmasi = your charm (fascination) "SI "is a possesive suffix meaning "your";
suurlähetillään comes from "suurlähettiläs" + genitival suffix (more complicated)-> of the ambassador
juhlissa = in the parties/celebrations (it's plural because it has the "i".It comes from the noun "juhla" (celebration, fiesta, festival).
I hope I could help in solving the mistery