Each arm has an attachment device to connect implements to the hitch and each hitch has attachment holes for attaching the implements.
He does a great job of explaining it in this video.
It attaches the implement to the tractor.
It would be great to have a good discussion of when to use a swinging drawbar vs.
If there is no shrubs or brush to contend with in the space you wish to keep mowed than a finish mower may be a better option as long as the land is somewhat smooth.
This leaves a nicely prepared bed for planting.