This example demonstrates the simplest possible D3.js visualization: a static text message rendered to the screen. It imports the `select` function from D3 and uses it to set the text content of a `<div>` element with the ID `message`. The message string itself comes from a separate local ES6 module, `myMessage.js`, which exports the text "Hello VizHub!". The visualization is minimal, serving as a template for how to structure a D3 v5 project with modular JavaScript, an HTML entry point, and a linked CSS file.