Here is the example,
The long and winding road leads to your door.
I know the present-participle modifiers may indicate something undergoing a process or somebody doing something. But I think the "winding" here neither represents a ongoing process nor an activity and it indicates the mentioned road has a curving shape. The word seems to represent a state or quality. Is my understanding right? How should I understand the meaning by the present-participle form of the verb "wind"?