Lyric discussion by canadianJAY 

Cover art for Bobcaygeon lyrics by Tragically Hip, The

A brilliant mix of words and melodious music that defines the outdoor summer music festival - only the irony lies in the fact that it's told from a COP's point of view and not the singer's

If you ask me, this song's about the Red Riots in the 1940s. Downie (or his character) was working as a Riot cop in Toronto, obviously keeping order at some sort of rally. The rally was disrupted by communist supporters, e.g. "Their voices rang with that Aryan twang", and Downie had to break up the ensuing riot. The last verse refers to how, in the middle of the riot, he couldn't get his wife/girlfriend off of his mind and he values her more than his job - maybe even questioning his morals slightly. The line about the "constellations" revealing themselves...

That would make sense, however, Communist ideals are not based around the idea of "Aryan" you are thinking of Fascism, and even then the connection between "Aryan" and Fascism is iffy, because it is also not a Fascist ideal, it was used by Hitler, who happened to be Fascist, and enforced in typical Fascist manner.