HOW-TO: create a Drupal views block to display the current node content

In views section, for an existing view or newly created one, do the following:

1. Click "Add" > "Block"
2. Fill in whatever you normally would do in views (this is beyond the scope of this tutorial)
3. Under "Contextual Filters" > click "Add" >  "Content: Nid" > "Provide default value" > "Content ID from URL"

And that's that...