At that time , Li Chengqian was suffering from a foot ailment that made it difficult for him to walk .
Therefore he did not see Emperor Taizong often , but instead spent his time in frivolous activities with associates that Emperor Taizong disapproved of .
At that time , Li Chengqian was suffering from a foot ailment that made it difficult for him to walk , and therefore he did not see Emperor Taizong often , but instead spent his time in frivolous activities with associates that Emperor Taizong disapproved of .