 Upon his return to Chang'an, Du, a devout Buddhist, offered thanks to the Buddha by holding a vegetarian feast for over 1,000 Buddhist monks.Meanwhile, it was said that because Du and his chancellor colleagues Yuan and Wang Jin were all devout Buddhists, Emperor Daizong and the other officials were all influenced by them to become devout Buddhists as well.In 769, Emperor Daizong wanted to put Du in charge of Luoyang, to replace Wang.