What are the main aspects of the revival of ritualistic painting in the Sui and Tang dynasties?

The revival of ritualistic paintings was mainly reflected in the early Tang Dynasty, when various painting activities were directly organized by the rulers, such as pictures of meritorious ministers and emperors, etc. As a tool for political propaganda, the Tang Dynasty paintings were similar to those of the Han Dynasty. As a political propaganda tool to "educate people and help them," the Tang Dynasty ritual paintings were similar to those of the Han Dynasty, and achieved the desired effect and made good achievements.