Portuguese Lyrics

Hey lusophones :D

I'm listening to this song by Cristiana Branco called "Canto Ainda por Alguém" and there's a line that I just canNOT seem to understand:

Mas em mim nada mudou
de quem parte nada vem . . .

But in me, nothing has changed
from whose part nothing comes

I feel I got the first sentence right, but for the life of me, I can't figure out what she means by "de quem parte nada vem."

Can anyone shed some light on this for me?

Obrigado!