On the seventh day
     of the seventh month,
I pray:
   that the sky is bright and gay
      for the lovers to see each other
       on the bridge of magpies
        after a year-long-wait.

The seventh day of the seventh month in a lunar calendar (around August) is the Weaver Festival in Eastern Asia. It is derived from a Chinese legend about the love of the Weaver and the Herdsman, represented by the stars Vega and Altair respectively. Because of their love, the Weaver neglected her work on clothes for the gods while the Herdsman neglected his cattle. As a result, the Heavenly Emperor punished them by putting the two stars on two opposite sides of the Milky Way, decreeing that they should be allowed to meet once a year, on the seventh day of the seventh month, when a charm of heavenly magpies use their wings to form a bridge that the lover stars can use to be with each other. However, the magpies will not make the bridge unless it is a clear night. If it rains, the lovers must wait until next year. On this festive occasion, poems are written in dedication to the two starry lovers, and women pray to the Weaver for skill in weaving, sewing, music, poetry, and other arts.