Maybe clarify how all of these are related and overlap a part of the Component model in the text on the WebAssembly Component Model page.

The concepts listed here are clear on that page, but do they fit together and overlap as part of the Component model? Just a sentence or two would so with diagrams.
--Physically, a component is a specially-formatted WebAssembly file. Internally, the component could include multiple traditional ("core") WebAssembly modules, and sub-components, composed via their imports and exports.
--A package is a set of one or more WIT (Wasm Interface Type) files containing a related set of interfaces and worlds.
--WIT is an IDL (interface definition language) for the Component Model.
--The WebAssembly System Interface (WASI) defines a number of packages, including one named wasi:clocks.