The Anima Mundi, the World Soul or heart of the world, was known across cultures from times immemorial. “Medieval texts image man as a microcosm of the world, but we dismissed this symbolic relationship, just as we rejected the older vision of the earth as a living being. As the world stopped being a sacred or symbolic reality and became just matter governed by the laws of physics, so the heart, or “soul of the world” (anima mundi), was discarded as a myth.” (Llewellyn Vaughan-Lee, Working with Oneness)
There isn’t an established Arabic term for the Anima Mundi, so I translated it verbatim, which I don’t usually do: روح الدنيا (Rûh ed-Dunya).