The blended feelings covered by the word are a group of life's first necessities and most constant joys: shelter, quiet, safety, warmth, ease, comfort, peace, and love. Add to these food, and you have the sum of the animal's gratification. Home is indeed heaven to him. The world outside is, to the animal with a home, a field of excitement, exertion, and danger. He goes out to eat, in more or less danger of being eaten; but if he can secure his prey and drag it home he is then perfectly happy. Often he must feed where it falls, but then home is the place for the after-dinner nap.
With the graminivora there is no thought of home. The peaceful grass-eater drops foal or fawn, kid, calf, or lamb, where chance may find her in the open, and feeds at random under the sky. Vegetable food of a weak quality like grass has to be constantly followed up; there is no time to gather armfuls to take home, even if there were homes--or arms. But the beasts of prey have homes and love them, and the little timid things that live in instant danger--they, too, have homes to hide in at a moment's notice. These deep roots of animal satisfaction underlie the later growths of sentiment that so enshrine the home idea with us. The retreat, the shelter both from weather and enemies, this is a primal root.
It is interesting to note that there is a strong connection still between a disagreeable climate and the love of home. Where it is comfortable and pleasant out of doors, then you find the life of the street, the market place, the café, the plaza. Where it is damp and dark and chill, where rain and wind, snow and ice make it unpleasant without, there you find people gathering about the fireside, and boasting of it as a virtue--merely another instance of the law that makes virtue of necessity.
Man began with the beasts' need of home and the beasts' love of home. To this he rapidly applied new needs and new sentiments. The ingenious ferocity of man, and his unique habit of preying on his own kind, at once introduced a new necessity, that of fortification. Many animals live in terror of attack from other kinds of animals, and adapt their homes defensively as best they may, but few are exposed to danger of attack from their own kind. Ants, indeed, sometimes make war; bees are sometimes thieves; but man stands clear in his pre-eminence as a destroyer of his own race. From this habit of preying on each other came the need of fortified homes, and so the feeling of safety attached to the place grew and deepened.