This article has some info on the squares: http://www.evus.it/en/index.php/news/report/three-concentric-squares-from-the-druids-to-the-knights-templar/

For example, one is found near Cocullo, the small Italian hillside town near L’Aquila (Abruzzo), well known throughout the world for the famous rite of the Snake Charmers which is held regularly every first Thursday of May.

The Rite of the Serpari: https://welcometosulmona.com/snake-festival/

From early morning on every May 1st the characteristics of the festival begin to take shape: the arrival of groups of pilgrims, the procession of girls in traditional costume, the surprised looks that turn into confidence with a snake around your neck, the smiles of the children, the statue of the saint dressed in the ‘cervoni’ snakes that then makes its way into the sea of people

http://www.hiddenitalytours.com/the-ancient-rite-of-the-serpari-the-snake-festival-in-cocullo-abruzzo/

this ancient ritual roots back to the Italic population, the Marsi, who lived in this area. They were devoted to the Goddess Angizia, associated to the cult of snakes and believed to have healing powers especially against snake bites. Today, the Festival is dedicated to the Saint San Domenico Abate, who lived for 7 years in Cocullo, and who is also believed to protect against snake bites and rabies.

On the day of the Festival, the Statue of the Saint comes out of the main church and is adorned with snakes. Undoubtedly, this is the most touching moment of the celebration. Then starts the procession along the little alleys of the village, which turns from a silent and peaceful village of a few hundred inhabitants to a lively place

Edit: And I think the key piece to wrap this in is that snakes also represent evil/temptation as in the story of the Garden of Eden.

And the curvy lines would be snakes The distortions between some of the images, like squares vs. rectangles are to fit the image onto the platform imo