Where does the money come from?

I was trying to reflect on the origin of the money, and after a while, I realized I have no idea.

There are goods and services, you pay for them with money you earned doing some other things (probably selling goods and services too), on a lower layer there’s manufacturing, having build supplies and applying human labor.

That human labor ultimately came from the ground, as food, which in turn makes them come from the Sun 🤔.

And then there’s a layer on top which are digital goods (just think how much did Google earned by “selling” screen pixels).

So, it seems all this money is moving from the Sun to digital services in a pyramid scheme?

I wonder if there’s another explanation.