Cats are so hard to organize "herding cats" is often used to refer to tasks that are impossible. So imagine how incredible Prince Shotoku must be when helps the government of Asuka period Japan get it's act together!
The contents could be interpreted as saying 
that Japan was more advanced than Sui.
Podía interpretarse como que Japón
era más avanzado que Sui.
O conteúdo poderia ser interpretado como
o Japão sendo mais avançado que Sui.