correcting my previous point: the infinity symbol indicates the infinite cycle of life like the Ouroboros, because the staircase goes up and down. Sometimes humanity drifts away from Gaia, sometimes it returns to it. But the whole thing might be indeed a reference to the Tarrot Card The Magician as you mentioned in a reply. Infact she's wearing a magician's robe and there's the bridge between the material world and the divine. The concept of Immanence.
https://en.wikipedia.org/wiki/The_Magician_(Tarot_card)
https://en.wikipedia.org/wiki/Immanence
Just to indicate people should emerge from their materialism and finally be able to see beyond the curtain and reach the divine/spiritual realm. The artist mural is acting as a magician in this case trying to bridge the material with the divine