The Grotto

I recently did a photo to recognize a local scout who completed his Eagle Scout project. The young man laid a new paver path, made many improvements and fixed a variety of issues that time and the elements had affected at this place known as the Grotto. I honestly know very little about the Catholic faith or for that matter what exactly the purpose of the Grotto is? My impression is it’s a place to pray, find peace and practice your faith? This is located on Catholic Church property and is really off the beaten path. It is under heavy mature trees and believe me when the sun went down it got extremely dark real quick. My idea was to light the scene and create a kind of outward illumination emanating from the central figure of Mary? I do know that this young mans eagle scout project was greatly appreciated by many people.