Where did you go?

I look at the sky at night
stare at the stars so bright
I see you're face in the milky way
Mummy wont tell me why you went away
All I know is you had no choice
Sometimes I think I hear your voice
It's telling me to take care
And that you'll alway be there
Though you are invicable
To me you're still visable
I see you in my dream
I wonder what this could mean
My heart aches now you have gone
It hurts when you loose someone
Still I would like to know
Why left
And where did you go?