What is the meaning when you were dreaming of luggage bags? The first logical interpretation is that your brain thinks you might be going traveling.
Besides being used for traveling, luggage bags are also used to pack excess stuff for storage at home. These luggage can also be used to transport clothes and home belongings when you have to move possessions from one location to another destination.
Luggage bags can be used to send things via mail or courier.
Which meaning applies to you? Only you alone can discern. Your personal circumstances have certain themes and you will be able to identify which interpretation best suits your current situation.