A Guinea Pig seems less useful than a dog because a dog can be used for security and a service dog for the blind. A Guinea Pig seems less useful than a horse because a horse can pull wagons or have a rider. A Guinea Pig creates joy and teaches people that joy has equal importance to usefulness because if something is useful without being joyful it can cause problems. People cannot just care about what is useful and profitable. What if someone has a disability and is slightly less useful and profitable but creates a lot of Joy. Not apples to apples but being joyful even if less useful is the lesson that this Guinea Pig Parable teaches.
