Hi chiefdazzler ,
If you have many assets which have same subject , topic , sector , category and they related with each others and you want to group them into a common name or a tag name for easier manage and searching then you will need a Labels name for them.
Keywords is using for Search engine , the words and phrases users type in to look for things on the system.
They're not the same thing, and they do not work the same way.
Hope this helps.