I enjoyed your writing. I imagined one side of the wall as as perfect zen, and the other as some barbaric chaos and disorder. I knew (from your report and other readings) that the wall was meant to keep out nomadic peasants, but did not realize that it was because China didn't want to trade. It makes more sense now, that the disorderly peoples would raid and take what they want just because things do not go their way. 

I have a general understanding that it is believed bodies were used in the manufacturing of the 'Great Wall', but I am not sure I truly believe it. I know lives were definitely lost, but is there any evidence that bodies are really a part of the Wall?

I can only imagine that the 'Great Wall' is constant reminder to the Chinese people of all the human sacrifice and they hate it.