In terms of Bronk's poem, the metonym of light gestures towards the real world without reducing it to the flawed constraints of human form.
Metonymy therefore is a viable form because it simultaneously reveals and conceals the real world.
Yet those rays of light puncture Bronk's dark vision and prompt his ongoing search for the real. The transcendent, in other words, accentuates the inadequacy of the finite world and emphasizes its lack through the perceived absence of the infinite.