The Chinese Animal Zodiac, or Sheng Xiao in Chinese, is based on the
traditional Chinese calendar. The Chinese Lunar Calendar names each of
the twelve years after an animal. According to a Chinese legend, the
Lord Buddha summoned all the animals to come to him before he departed
from earth. Only twelve came to bid him farewell and as a reward he
named a year after each one in the order they arrived.
The Chinese believe the animal ruling the year in which a person is born
has a profound influence on personality, saying: "This is the animal
that hides in your heart."