Elbenlicht literally translates to "Elven light". It's a compound word combining "Elben" (elves) and "Licht" (light), immediately evoking a sense of fantasy and magic.
In the song, it refers to a protective, ethereal light that guards against the shadows of the night, specifically mentioned as "Ein Elbenlicht vor den Schatten der Nacht" (An Elven light before the shadows of the night). This word is particularly enticing because it's not common in everyday German and directly references the fantastical, almost mythological themes present in the lyrics, making it memorable and unique to this song's narrative.
"Vergiss mein nicht" is a duet between Oonagh and Santiano about two lovers from different worlds, one of them mortal and one of them not. The song's opening lines make the imbalance explicit: "meine endlos, deine schwindet" (mine is endless, yours is fading) and "ewig darfst du nicht sein" (you are not allowed to be eternal). Their love crosses a boundary that time itself enforces.
The title phrase, repeated through the chorus, is the archaic German idiom "Vergiss mein nicht" — literally "forget me not," the same phrase that names the flower. It works as both a plea and a promise: don't forget me, and I won't forget you, "im nächsten leben" (in the next life), across as many lifetimes as it takes.
The elvish imagery — "Elenion hält deine wacht" (Elenion keeps your watch) and the "Elbenlicht" (elf-light) that holds back the shadow of night — frames the separation as something almost mythic, a light that watches over the parted lovers until "wo die zeit nicht vergeht" (where time does not pass) and the two worlds can finally meet.