Lyric discussion by drfunk 

Waiting for the worms draws a parallel between Pinks altered state of mind and that of WW2 dictators as mentioned: Hitler "the final solution" and Mussolini "put on a black shirt". As Pink comes off his drug he goes back and forth from a humane state to a more violent being willing to crush anything in his way. In the songs that precede WFTW he goes through a skin crawling withdrawal into a worm like dictator, as they run like hell. The worms are ultimately any destructive force set to destroy anything in its path. The reference to Mussolini and Hitler are here to not only define how they affected pink but how they affected the human condition. "Would you like to see Britannia Rule again, my friend?" is sung in an almost angelic voice followed up with the more sinister "All you have to do is follow the worms". I believe this is to be interpreted as the method for which these two dictators came into power. Pink has a burning fascination with Hitler and Mussolini as he struggles to compare himself in an effort to understand how his farther died. He slowly slips back into reality, his emotions beg for the comfort of home as he ponders his own guilt.

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