Lyric discussion by jim1098266 

There are a lot of good interpretations here. I agree with many of them.

The 3 animals represented are the three major powers in the capitalist Society. The pigs who are the leaders of the government, the dogs who are the leaders of business, and the Sheep who collectively are the power of the economy.

In Pigs on the Wing part 2, the author admits to being a dog but at least he is not alone, and he does not feel the weight of his burden - the stone, because he has a home and a companion.

The stone is simply a representation of a tumor, the cancer that was brought on by so much bad blood.

The sad old man is just one of many, and it's the same person who's all alone and dying of cancer.

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