"Greek Key Motif"?

House Beautiful has an article about The Greek Key Motif by Carol Prisant. What is "Greek Key Motif"? Prisant describes it as "a rectilinear meander pattern: one very long and continuous line that folds back on itself repeatedly. " It meanders or wanders like the river, Maeander River in ancient Anatolia.We are excited to have next month, on Saturday March 15th from 10:00 AM to 11:00 AM,