The Mandate of Heaven (天命) was a Chinese political and religious doctrine used to justify the rule of the emperor of China. According to this belief, heaven (天, "Tian") stands for the natural order and will of the universe. Heaven will give a mandate to a just ruler, the Son of Heaven. If a ruler was overthrown, this was interpreted as an indication that the ruler was unworthy, and had lost the mandate. It was also a common belief that natural disasters such as famine and flood were signs of heaven's displeasure with the ruler, so there would often be revolts after major disasters as citizens saw these as signs that the Mandate of Heaven had been withdrawn.