On Lu You's poems contemplating the past in Ba and Yu

Lu You went to Sichuan in his middle age and was an official in Kui State afterwards and then left Sichuan.He wrote twenty one poems which contemplated the past in Ba and Yu and which expressed his frustration in his official road or expressed his patriotic feelings or hoped to be appointed to high position or used ancient history to criticize government at that time. Although he was in the period of his official frustration,he still expressed his ambition to counter Jin State and restore China.His poems expressed his patriotic thoughts which were the vigor for him to change his poetry style in his middle age.