If you dream of the Rough Collie, it might mean you desire a friendly pet who is tolerant of other dogs and domestic pets. Dream interpretation depends on the known characteristics of this breed. Since it is a friendly dog, it is assumed that your brain conjured up this image to send a message about a desire to obtain this kind of dog.
Since the Rough Collie is a very friendly dog, it is unsuitable as a guard dog or watch dog. It will allow strangers to enter into its territory and will not bark to raise the alarm.