"Joy to the father" was used in old times to celebrate the birth of a boy. "Zhang" generally refers to jade, the ancients gave the boy to play, hoping that the boy can have a noble character like jade when he grows up. "The joy of Zhang" comes from "Poem · Little Ya · Skan" : "Is born a man, carrying the bed, carrying the clothes, carrying the zhang."
According to the gender of the child, the greetings vary. In ancient times, if a boy was born, a "celebration of the joy of Zhang" should be the best blessing, in addition, "heaven fell Shilin" can also express congratulations to friends and relatives. Corresponding to the blessing of boys, when giving birth to girls, they should congratulate their relatives and friends on the "joy of tiling", which means that they wish the little girl to be good at female workers, do housework, and become a good wife and mother.
Know what the meaning of the joy, we can be assured to use in the occasion of congratulating the birth of the male baby, so the language can greatly show the cultural literacy of the congratulator, but it should be noted that if the female baby is born, still use the ancient "celebration of the joy" seems to have a wrong place, after all, many girls today have the strength of women.