What does sixteen arhats mean? How to explain it?

It means: Dobin Barrow is lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty, lofty,