The river was so clear because it was the home of a very beautiful Water Nixie who lived in it, and who sometimes could emerge from her home and sit in woman's form upon the bank. She had a dark green smock upon her, the colour of the water-weed that waves as the water wills it, deep, deep down. And in her long wet hair were the white flowers of the water-violet, and she held a reed mace in her hand. Her face was very sad because she had lived a long life, and known so many adventures, ever since she was a baby, which was nearly a hundred years ago. For creatures of the streams and trees live a long, long time, and when they die they lose themselves in Nature. That means that they are forever clouds, or trees, or rivers, and never have the form of men and women again. All water creatures would live, if they might choose it, in the sea, where they are born. It is in the sea they float hand-in-hand upon the crested billows, and sink deep in the great troughs of the strong waves, that are as green as jade. They follow the foam and lose themselves in the wide ocean-- "Where great whales come sailing by, Sail and sail with unshut eye;" and they store in the Sea King's palace the golden phosphor of the sea. But this Water Nixie had lost her happiness through not being good. She had forgotten many things that had been told her, and she had done many things that grieved others. She had stolen somebody else's property--quite a large bundle of happiness--which belonged elsewhere and not to her. Happiness is generally made to fit the person who owns it, just as do your shoes, or clothes; so that when you take someone else's it's very little good to you, for it fits badly, and you can never forget it isn't yours. So what with one thing and another, this Water Nixie had to be punished, and the Queen of the Sea had banished her from the waves.[52] "You shall live for a long time in little places where you will weary of yourself. You will learn to know yourself so well that everything you want will seem too good for you, and you will cease to claim it. And so, in time, you shall get free." Then the Nixie had to rise up and go away, and be shut into the fastness of a very small space, according to the words of the Queen. And this small space was--a tear. At first she could hardly express her misery, and by thinking so continuously of the wideness and savour of the sea, she brought a dash of the brine with her, that makes the saltness of our tears. She became many times smaller than her own stature; even then, by standing upright and spreading wide her arms, she touched with her finger-tips the walls of her tiny crystal home. How she longed that this tear might be wept, and the walls of her prison shattered! But the owner of this tear was of a very proud nature, and she was so sad that tears seemed to her in no wise to express her grief.