The most important holidays in Korea. It is on the 15th of 8th lunar month, so it is either in September or in October of the Gregorian solar calendar ( means the calendar we use globally).
The encyclopedia says that it is 2000 years old harvest festival in Korea. It is also sort of thanksgiving day, though not to the God as it used to be in the West, but to the ancestors.
It is a time of enormous traffic, as most of the inhabitants of Seoul are people who live here for no longer than 50 years. Most of these modern nuclear families go to the countryside to visit their relatives and on the Chusok day pay respects at their ancestors graves.
The ancestors worship originates from primeaval Korean times, longer than confucianism, buddism taken altogether. It has it's roots in Shamanism, in times when harvest was crucial to survival of the group (clan) and ancestors were worshipped as the source of care and inherited group wisdom shared spiritually by all of the members of the tribal village. In ancient Korea there were several shamanistic influences both from the South and from the North, nevertheless with the similar characteristics in it.
Ancestor worship was digested by buddism and taken as part of the belief system, later confucianism also did not fight with this as it fell into the category of filial piety.
What is Chusok now? It is difficult for a foreigner to grasp. All we see is that buses are not that much crowded, on subway there are less people, less cars race down the streets. The lazy relaxed athmosphere is somehow in the air.
I have learnt from my Korean friends that Chusok requires lots of preparations. Ideally these are women of all generations gathering together for baking song pyun and cooking japchae. Song pyun are traditional rice cakes, very delicious, and japchae are friend brown noodles, something worth to try.
In the old times there used to be common gatherings and festivals in the villages, just like globally in the rural society getting together is an important thing.
Currently Koreans cook and eat, but they also play games or watch movies. Encyclopedias say that they also make their traditional dances in the evenings, but I haven't seen it in my own eyes.
Chusok is a test of character for many. Together with Sollal, Chusok is also a time when couples suffer, cause no matter how much in love they are, usually both have big family assemblies. In the West, we would not invite someone casual, but a serious partner shares our family holidays. It's actually a test for the relationship, as to how serious it is. Here though, even if the relationship is serious, people are still parted for that time. I have no idea yet how is it with married couples, this is yet to discover.
Source of a photo: http://rice-cake.info/