Copyright is the act of ownership for things that cant be owned physicaly. It is there to protect ideas creative work and other things.
The Copyright laws protect the work that you have made by your own, for example: a film, a paiting, a photo and anything that you cant physicaly own but is made by your mind
The property of your ideas and your work that consist of a unique peace of work that you made up yourself. It is your property and you own it.
No one else is allowed to copy your work without your permission. You have the right to do anything you want with it. That includes letting people use it for free.
To gain the right of intellectual property you have to make it your own work and nothing that was made by AI or anythingthat was made by somebody else.