"In the Saros Cycle" is a cool song in rock. What is the Saros cycle? "It is a cycle in which the positions of the Sun, the Earth, and the Moon are almost the same, and the length of the Saros period is 18 years, 11 days and 8 hours." In other words, if a solar eclipse occurs today, it will occur again in 18 years and 11 days and 8 hours later, under almost the same conditions. How do we live in this period, and what will we think the next time we see the same scenery? That's what this song is about.