2 of the several engraved crosses on the stone.
Image credit: wido_piemonte
Images
Another pic of the rock. On the left you can see the chapel built on it.
Image credit: wido_piemonte
The big rock.
Image credit: wido_piemonte
Articles
“La Pietra della vita” (The Stone of life) is a big natural stone, glacial erratic, in Oropa near Biella. The stone is still visible on the backside of the shrine and it was object of strong fertility cults in the ancient times. The cult survived untill the christian era but christianized with a lot of crosses engraved on it first, than with a chapel built on it.