Yes,I'm back in black是什么意思？

back in black 
i hit the sack
i've been too long i'm glad to be back [i bet you know i'm...]
yes, i'm let loose 
from the noose
that's kept me hanging about
i've been looking at the sky 
'cause it's getting' me high
forget the hearse 'cause i never die
i got nine lives
cat's eyes
abusin' every one of them and running wild

chorus:
'cause i'm back
yes, i'm back
well, i'm back
yes, i'm back
well, i'm back, back
(well) i'm back in black 
yes, i'm back in black

back in the back 
of a cadillac
number one with a bullet, i'm a power pack
yes, i'm in a bang 
with a gang
they've got to catch me if they want me to hang
cause i'm back on the track 
and i'm beatin' the flack
nobody's gonna get me on another rap
so look at me now
i'm just makin' my play
don't try to push your luck, just get out of my way

chorus

well, i'm back, yes i'm back
well, i'm back, yes i'm back
well, i'm back, back
well i'm back in black
yes i'm back in black

hooo yeah
ohh yeah
yes i am
oooh yeah, yeah oh yeah
back in now
well i'm back, i'm back
back, i'm back
back, i'm back
back, i'm back
back, i'm back
back
back in black
yes i'm back in black

out of the sight 


赫赫 听了这首歌后觉得
是
在黑暗中回归..