Bring 5 cups of water to rolling boil, add salt. Pour in barley, cover and reduce to a simmer. Allow to cook about 5 minutes. Wisk in cornmeal, then stir in remaining grains. Cover pan again, turn heat to down to bare minimum to keep pan warm and allow grains to cook thoroughly. Stir regularly to keep cereal from sticking and burning. Treat almost as if you are making rice (it's a similar process). Remove from heat and allow to sit for a few minutes. Cereal will be very thick. Add more water at start if you like a creamier cereal. Serve with milk, honey, cinnamon and dried fruit. I make a big batch and parcel it out for the week.