There is a certain amount of attention to gift-giving, gift-giving three kinds of not send four kinds of is because the number of gifts to pay attention to the number of auspicious as well, you see 3 is not more than 4 symbolizes auspicious some. Generally speaking, the gift is to send double not to send a single, but also to avoid double the number of unlucky numbers can be.

From the general policy of gift-giving, it is appropriate to send a double number should not send a single number, it is appropriate to send auspicious numbers should not send inauspicious numbers, it is appropriate to send a gift off three should not be sent four.

Expanded information:

People give each other gifts, is indispensable to the social life of mankind in the content of the interaction. The Chinese have always honored the exchange of gifts. Li Ji - Qu Li Shang said: "The etiquette of communication, to come and not come, not a gift, to come and not go, also not a gift." Gifts, together with a series of other ceremonial activities, have arisen and developed. As we know, rites originated in the ancient times with sacrificial activities.

During sacrifices, in addition to showing reverence and awe to the gods with standardized movements and pious attitudes, people also dedicated to the gods their most valuable items (i.e., sacrifices) that best reflected their respect for the gods. Perhaps from that time on, there has been a material component and manifestation in the meaning of rites. That is, rites can take the form of objects.

On the concept of gift, some people say that it originally came from the ancient wars due to the tribal annexation of the "tribute", that is, the conquered to the conqueror on a regular basis to send food, slaves, and so on, in order to show obedience to the conqueror and beg for the conqueror's shelter. There are records of wars caused by untimely or inconsiderate gifts.

For example, during the Spring and Autumn Period, a war in which a coalition of countries in the central plains attacked Chu was triggered by Chu's failure to send a cartload of thatched grass to the Zhou Emperor on time. It is also believed that the original gift is a commercial nature of the exchange of goods, the original "gift of exchange", in essence, is to gift the way of reward for the exchange of products.

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