(More to come)
Koryo (1st Dan)
Koryo was an ancient dynasty in Korea. The Koryo poomsae symbolizes a strong martial spirit and a righteous learned man's spirit, which have been inherited from the people of the Koryo dynasty. Unlike the Taegeuks, which begin in "joonbi" position after bowing, Koryo begins by placing the thumbs and index fingers together to form a triangle, representing a mountain, and raising this up towards the face while breathing in slowly and then straightening the arms away from the face (still forming the mountain with the hands) while breathing out deeply. This is done immediately after bowing without any indication from the instructor to begin. You must begin on your own after bowing. Some other new techniques are introduced in this poomse, including a knee-break, choke, low grab, as well as a side kick followed by another side kick with same leg which is done without putting the foot down between kicks. The first kick is to stomach height and the second is to the face. This technique should not be done too quickly. Each kick should be done fully, with equally good technique (fully extending the leg and pulling it back properly and completely, before throwing the second kick) in order to demostrate good self control. The poomsae traces a line representing the Chinese letter meaning "seonbae", a learned or virtuous man.
Keumgang (2nd Dan)
Keumgang means "diamond", and symbolizes "hardness" as well as "to ponder". The name of this poomsae also comes from the Keumgang mountain in Korea, as well as the Keumgang Yeoksa, who represents the mightiest warrior.
External source used: World Taekwondo Federation website. http://www.wtf.org/wtf_eng/site/about_taekwondo/poomsae.html