the son of heaven concept was designed to promote
The title "Son of Heaven" stems from the concept of the Mandate of Heaven, created by the Zhou Dynasty monarchs to justify their having deposed the Shang Dynasty. They held that Heaven had revoked its mandate from the Shang and given it to the Zhou in retribution for Shang corruption and misrule. Heaven bestowed the mandate on whomever was most fit to rule. The title held the emperor responsible for the prosperity and security of his people by the threat of taking away his mandate.