Can someone explain covered calls as if I was their dog?

I’ve tried researching covered calls and I don’t quite understand how you make money from it.

I was thinking of doing VOO covered calls. The amount may be very expensive and I want to make sure I’m aware of the implied risk, how much you can make, and how much you can lose.

From my understanding you just need to have 100 shares, sell them as covered calls, and wait till expire and then you pocket the premium and your shares so long as the share price stays below the strike price?

Thanks