Gorillaz: Clint Eastwood

What do the lyrics mean? I've been trying to bend my mind around them but I haven't had any luck.

i ain't happy, i'm feeling glad
i got sunshine, in a bag
i'm useless, but not for long
the future is comin' on
i ain't happy, i'm feeling glad
i got sunshine, in a bag
i'm useless, but not for long
the future is comin' on
it's comin' on
it's comin' on
it's comin' on

yeah...ha ha!
finally someone let me outta my cage
now time for me is nothin' cuz i'm countin' no age
now i couldn't be there, now you shouldn't be scared
i'm good at repairs, and i'm under each snare
intangible, bet you didn't think so i command you to
panoramic view, look i'll make it all manageable
pick and choose, sit and lose
all you different crews, chicks and dudes
who you think is really kickin' tunes?
picture you gettin' down in a picture tube
like you lit a fuse, you think it's fictional?
mysical? maybe. spiritual, hearble
what appears in you is a clearer view
cuz you're too crazy, lifeless
to know what the defnition of life is, priceless
for you because i put you on the hype ****
you like it? gunsmokin' righteous with one token
psychic among you posess you with one go

i ain't happy, i'm feeling glad
i got sunshine, in a bag
i'm useless, but not for long
the future is comin' on
i ain't happy
i'm feeling glad
i got sunshine, in a bag
i'm useless, but not for long
the future is comin' on
it's comin' on
it's comin' on
it's comin' on

the essence the basics, without it you make it
allow me to make this, child, like in nature
rhythm, you have it or you don't, that's a fallacy
i'm in them, every sprouting tree, every child apiece
every cloud you see, you see with your eyes
i see destrucction and demise
corruption in disguise, from this ****in' enterprise
now i'm sucking to your lies, through russ
though not his muscles, but the percussion
he provides, with me as a guide
but y'all can see me now 'cuz you don't
see with your eye, you perceive with your mind
that's the inner, so i'm gonna stick with russ
and be a mentor, with a few rhymes
so mother****ers, remember where the thought is
i brought all this, so you can survive
when law is lawless, feelings, sensations
that you thought were dead
no squealing, now remember (that it's all in your head)

i ain't happy, i'm feeling glad
i got sunshine, in a bag
i'm useless, but not for long
the future is comin' on
i ain't happy, i'm feeling glad
i got sunshine, in a bag
i'm useless, but not for long
the future is comin' on
it's comin' on
it's comin' on
it's comin' on
it's comin' on
my future is comin' on
it's comin' on
it's comin' on
it's comin' on
it's comin' on
my future is comin' on
it's comin' on
it's comin' on
it's comin' on
it's comin' on
my future is comin' on
it's comin' on
it's comin' on
it's comin' on
it's comin' on
my future is comin' on
it's comin' on
it's comin' on
my future is comin' on
it's comin' on
it's comin' on
my future is comin' on
it's comin' on
it's comin' on
my future