Trapped Fly

I see a bottle on a green Royal marble mantelpiece Behind a sheer screen Dividing the abyss Of hidden knowledge With a little black fly Trapped forever inside She flies around in wide Circles all the time Flapping her little wings She hits clear glass walls Keeping her inside With black skinny legs Like broken strings Of an old vintage violin Dangling in the air She flies away again And slowly swings back In another wide circle Without noticing the glass That keeps her inside She moves around Dancing in a bottle Trapped forever to think That the world she lives in Behind a green glass Is the whole Universe