It was a place my mom wanted to see on our trip. She took mass in there, while my sister and I took photos (and later joined her by the end of the mass).
It is a sacred church and ground, worshiped by many.
I found this little piece of information (in English) on the internet:
“The present basilica is located on a hill, where in the twelfth-century, stood a wooden figure of Mary, the Mother of God. According to a chronicle from 1218, the blind Jan from Raszewo (Jan z Raszewa) regained his sight there. After the event, many pilgrims began visiting the area.”
…And they do to this day.