"Hey, it'll be--...everyone, look! It's Light!"
"Light's back! She's back from the dead!"
"I am not Light."
"Y-yeah you are. That's your body, your bow--"
"Ah, I see. You misunderstand. Light was a mere vessel, a host for me. I am another form of her, an alternate power--her and her counterpart melded, our souls bound. I am her, but I am not her, and I am not myself and we are one."
"Then...who are you?"
"I am Light and Celestar as one--the Sun Goddess, Sômâasí."
Hint: If you enter edit mode and mute violin and strings, the song playing at measure 16 is called "Dream," and it's a song from Palmer's and Light's childhood.