Licht mystical union of Sunday prepares the way for the new life of Monday. "In this way there is neither end nor beginning to the week. It is an eternal spiral" . Each opera is composed from an elaborated form of the corresponding day-segment of the superformula, made by superimposing one or more complete lines from the superformula, compressed to the length of the day-segment. These are named for the day in question (e.g., "Mittwoch-Formel".) The separate acts and scenes often involve further superimpositions of formula material. For example, "Luzifers Traum", the first scene of "Samstag", has a total of five
Names of the days of the week of the week closely parallels that of the Latin system and is ordered after the "Seven Luminaries" (七曜 "qī yào"), which consists of the Sun, Moon and the five planets visible to the naked eye. The Chinese seem to have adopted the seven-day week from the Hellenistic system by the 4th century, although by which route is not entirely clear. It was again transmitted to China in the 8th century by Manichaeans, via the country of Kang (a Central Asian polity near Samarkand). The 4th-century date, according to the "Cihai" encyclopedia, is due to a reference to Fan Ning (範寧/范宁),