And another cool thing- 'sun burns out and the sky falls down' is also pretty similar to the line from 'mount saint helens' - 'sun falls down and the sky burns out.' I suppose in general a lot of your music conveys apocalyptic emotions and references so perhaps 'sun is not ver
 y bright' and 'the sky is falling' were merely intuition ..but then I thought deeper.. the song as a whole... And I realized given all the present themes of the future being upon us and reconciling that with the memories of our past, maybe all this really does take place farther along upon a vast timeline, where the sun may really be slowly dying out and no longer radiates light to the extent of our own. And all this talk of the sun and skies still connects it all back to 'flying around'. His arms are supposedly too tired to talk about it, maybe from flying, or maybe even because he doesn't want to talk about it. "the sky is larger than any sky can be" This builds on 'sky is falling" describing how unimaginably and unbelievably vast the sky truly is, presumably as seen from the perspective of one flying across it.
i guarantee i was not thinking about flying at this point. given the carefree attitude of this song, i'd assume that pretty much everything in here so far, including the sandals, sky, the flying, are part of a floaty collage of aesthetics here