This was just not just a country of shepherds. There were stonemasons and carpenters, fishers, roofers and makers of cooking utensils. Perhaps, metalsmith and certainly blacksmiths.
Of course, there are the shepherds watching their sheeps and there's the wise man checking the skies, the assorted animals that live in the manger swing their heads and complain about losing sleep. So, in this great grey, somewhat foreboding Basilica is a small world of humanity living out their lives in what historically is one of the most important moments in history.