Teniers, David – San Pablo, primer ermitaño, y San Antonio Abad Part 6 Prado Museum

The picture has something of this: cave, subway system, people, water, tunnel, rock, geology, grotto, limestone, stalactite, mine, light, landscape, indoors.
Perhaps it’s a painting of a man and a woman sitting in a cave with a book in their hands and a bird flying in the sky in the background.