Sure, the river is Huck and Jim's transportation. It's taking them from captivity (slavery; child abuse) to (hopefully) freedom in the state of Ohio. But the river ends up symbolizing freedom in its own right.
Before hitting the rapids, Huck feels confined—both by both society (which, figuratively, kept Huck imprisoned by its restrictive rules) and by Pap (who, literally, kept Huck locked up). And the river is the only route they can take if they want to be free both in that present moment and in their respective futures. Check out the way Huck describes it:
So in two seconds away we went a-sliding down the river, and it did seem so good to be free again and all by ourselves on the big river, and nobody to bother us. (29)
"Free again," "All by ourselves," "nobody to bother us": to Huck, the river represents a life beyond the rules of society. And that's a life he could get used to.
1The kings of steel, of petroleum, and all the other kings of the United States have always in a high degree excited my power of imagination. It seemed to me certain that these people who possess so much money could not be like other mortals.
2Each of them (so I said to myself) must call his own, at least, three stomachs and a hundred and fifty teeth. I did not doubt that the millionaire ate without intermission, from six o'clock in the morning till midnight. It goes without saying, the most exquisite and sumptuous viands! Toward evening, then, he must be tired of the hard chewing, to such a degree that (so I pictured to myself) he gave orders to his servants to digest the meals that he had swallowed with satisfaction during the day. Completely limp, covered with sweat and almost suffocated, he had to be put to bed by his servants, in order that on the next morning at six o'clock he might be able to begin again his work of eating.
3Nevertheless, it must be impossible for such a man -- whatever pains he might take -- to consume merely the half of the interest of his wealth.
4To be sure, such a life is awful, but what is one to do? For what is one a millionaire -- what am I saying? -- a billionaire, if one cannot eat more than every other common mortal! I pictured to myself that this privileged being wore cloth-of-gold underclothing, shoes with gold nails, and instead of a hat a diadem of diamonds on his head. His clothes, made of the most expensive velvet, must be at least fifty feet long and fastened with three hundred gold buttons; and on holidays he must be compelled by dire necessity to put on over each other six pairs of costly trousers. Such a costume is certainly very uncomfortable. But, if one is rich like that, one can't after all dress like all the world.
5The pocket of a billionaire, I pictured to myself so big that therein easily a church or the whole senate could find room. The paunch of such a gentleman I conceived to myself like the hull of an ocean steamer, the length and breadth of which I was not able to think out. Of the bulk, too, of a billionaire I could never give myself a clear idea; but I supposed that the coverlet under which he sleeps measures a dozen hundred square yards. If he chews tobacco, it was unquestionably only the best kind, of which he always sticks two pounds at a time into his mouth. And on taking snuff (I thought to myself) he must use up a pound at a pinch. Indeed, money will be spent! 6His fingers must possess the magic power of lengthening at will. In spirit, I saw a New York billionaire as he stretched out his hand across Bering Strait and brought back a dollar that had rolled somewhere toward Siberia, without especially exerting himself thereby.
7Curiously, I could form to myself no clear conception of the head of this monster. In this organism consisting of gigantic muscles and bones that is made for squeezing money out of all things, a head seemed to me really quite superfluous.
8Who, now, can conceive my astonishment when, standing facing one of these fabulous beings, I arrived at the conviction that a billionaire is a human being like all the rest!
9I saw there comfortably reclining in an armchair a long, wizened old man, who held his brown, sinewy hands folded across a body of quite ordinary dimensions. The flabby skin of his face was carefully shaved. The underlip, which hung loosely down, covered solidly built jaws, in which gilded teeth were stuck. The upper lip, smooth, narrow and pallid, scarcely moved when the old man spoke. Colorless eyes without brows, a perfectly bald skull. It might be thought that a little skin was wanting to this reddish face, to this countenance that was expressionless and puckered like that of one new-born. Was this being just beginning its life, or was it already nearing its end?
10Nothing in his dress distinguished him from the ordinary mortal. A ring, a watch, and his teeth were all the gold he carried with him. Scarcely half a pound, all told! Taken altogether, the appearance of the man recalled that of an old servant of an aristocratic family in Europe.
