A pilgrimage is a journey or search of moral or spiritual significance. Typically, it is a journey to a shrine or other location of importance to a person’s beliefs and faith, although sometimes it can be a metaphorical journey into someone’s own beliefs.
Churches changed to may these travelers by making adding more seating and quiet areas where travelers came visit during their Mass hours etc and wouldn’t distract the services that is going on. Most of these travels ore either visiting learning about different cultures or they are on a solitary trip where they want to get away on get on another spiritual level with their higher power. Or some go to these churches looking for healing and conformation on something that had already came to them.