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
Eight-day week popularity of the seven-day rhythm won and the eight-day week disappeared. The cycle of seven days, named after the sun, the moon, and the five planets visible to the naked eye, was already customary in the time of Justin Martyr, who wrote of the Christians meeting on the Day of the Sun (Sunday). Emperor Constantine eventually established the seven-day week in the Roman calendar in AD 321. The Celts used periods of darkness such as night and winter to begin their calculations of time. This meant that the first period of time in a "week" was a night, followed by