Seventh day of the lunar calendar Chinese valentine's day, referred to as "Chinese valentine's day, commonly known as the needlework,is the most brilliant colour in Chinese traditional festival of a festival.Legend every seventh day is the day when meet niulang and zhinv. On this day, the world of the magpies will fly to the sky, as the cowherd and zhinv build a bridge, let two people through the tianhe meet each other. On the evening of the day, if quietly hide under the grape trellis, you can hear niulang and zhinv confidences said.