Claim. World civilization develops in a single providential circuit — continental Egypt → peninsular Greece/Rome → island Britain → continental America → island Japan → and ultimately fruiting on the peninsular Korean civilization — and the rise and fall pattern is seasonal, repeating like the year (Spengler’s intuition recast theologically).
Elaboration. SMM states the circuit explicitly: “civilization moved from the continental civilization of Egypt to the peninsular civilization of Rome and Greece, then to the island civilization of Great Britain and reached the continental civilization of the United States of America. The continental civilization is now moving west, crossing the Pacific Ocean, passing through the island civilization of Japan and ultimately culminating in the civilization of the Korean peninsula to connect with Asia” (1.1. Why is the Pacific era coming?, 115-171, 1981.11.10). He names the analogy openly: “As the historian Spengler pointed out, the rise and fall of civilizations have been recurring like the changes of the four seasons in a year. The age of the Atlantic civilization has now passed, ushering in the age of the Pacific civilization.” And the fruiting must be on a peninsula because “the pilgrimage of civilization must bear fruit in Korea as a peninsular civilization. This is the providential outlook” (1.1. The currents of world history centering on civilizations, 279-208, 1996.8.20).
See also. csg-pacific-era-comes-because-jesus-lost-his-body-in-asia · csg-korean-peninsula-corresponds-to-italian-peninsula