Lyric discussion by atloVsraMehT 

Cover art for Song for Luna lyrics by As Tall as Lions

I've always heard "singing to the moonlight" instead of "sing into the moonlight"

This references her name (as Luna is Spanish for moon) and is really quite a beautiful concept. It is particularly poignant when combined with the sudden change in dynamics at the end of the bridge.

What a completely amazing song this is.