How Terraform Works: A Visual Intro [Illustrations]

I'm keen to understand how I've managed to get this far without understanding the first thing about Terraform, beyond maybe its the foundational premise of "infrastructure as code." I've casually tried a few times to fill in those gaps. And wow, the learning materials are just atrocious. Still not even sure, is it a language? A serialization format like Yaml?

This seems like a step in the right direction. I do wish the images were visible on mobile.