"I long ago lost a hound, a bay horse, and a turtle-dove, and am still on their trail. Many are the travelers I have spoken concerning them, describing their tracks and what calls they answered to. I have met one or two who have heard the hound, and the tramp of the horse, and even seen the dove disappear behind a cloud, and they seemed as anxious to recover them as if they had lost them themselves."

Henry David Thoreau

What is Henry David really saying?

What do the hound, horse and dove represent?