Like he thought the “elements” were earth, wind, fire, and water and that all objects want to be in their “natural” place. So, if you drop a rock, it tries to return to the earth. Fire goes up because it’s trying to get to where it “wants” to live.

That’s basically correct, though, as long as you’re intepreting “elements” to mean something more in linenwith “states of matter”, rather than actual fundamental periodic style elements.