Birth, oldness, illness and death, are human nature. After ten months' pregnancy, a new baby was born. The baby would cry aloud at birth and then learn to speak, grow up day by day. He or she would experience every step of human life, from maturity, marriage, bringing up a family, aging to final death, which forms a cycle of life. Joys or sorrows, gains or losses, successes or failures...Everything would become slim and insignificant as compared to life. However, it was those experiences that make human life colorful. As a result, there had been special folk customs to mark each and every stage of human life in Beijing.