i had a huge article about this off the internet from a polish site (translated). i gave it to my teacher carl cranmer - but i think i can find it again if i try. you might also, if you type in mickiewicz and search 10-12 googles back. look for a polish site. it was quite interesting and the one i remember searching was about a lake. i think chopin's whole hometown was destroyed and the placid lake covered the horror of all the dead bodies or something. hope i'm not totally off on this. chopin was basically living his life in a 'shock' state. he was very depressed for what happened to his native poland.
This is a link to a page in Polish...do you read Polish, nomis?