포은시에 나타난 경국의지와 귀향의식 = The responsibility for administrating the state to relieve the people`s suffering and an aspiration to return to old home (Keywords : 경국의지, 경세제민, 귀향의식, 귀거래, 종군, 사행, 호기, 고독, 그리움, patriotism, long-cherished desire, solitude, ambassador, return to old home):