In cleanest, severest outline he had traced the Great Wheel with its six spokes, whose centre is the conjoined Hog, Snake, and Dove (Ignorance, Anger, and Lust), and whose compartments are all the Heavens and Hells, and all the chances of human life.

Men say that the Bodhisat Himself first drew it with grains of rice upon dust, to teach His disciples the cause of things.

Many ages have crystallized it into a most wonderful convention crowded with hundreds of little figures whose every line carries a meaning.

Few can translate the picture-parable; there are not twenty in all the world who can draw it surely without a copy: of those who can both draw and expound are but three.
'I have a little learned to draw,' said Kim.

'But this is a marvel beyond marvels.' 'I have written it for many years,' said the lama.