The Light of Asia is a long poem in eight books that tells the life of Gautama Buddha as the story of Prince Siddartha. Arnold writes it as a devoted account of the founder of a faith he admired, and he speaks throughout in the voice of one who loves the Master and wants to pass on the Ways of Peace. It is verse, not scripture, so its strength is the human shape it gives to a familiar story.
The early books show a charmed, guarded childhood. A wise King hears that his son will become either a world-ruler or a holy wanderer, and he tries to bind the boy to the throne with beauty and pleasure. Siddartha is given three palaces, married to Yasodhara, and surrounded by every delight, while servants are ordered to keep all mention of death, age, sickness, and pain away from him.
The turning point is the famous ride beyond the gates. Siddartha sees an old man bent and broken by the years, then a man wracked by disease, then a corpse carried to the pyre. He grasps that this will come to him, to Yasodhara, and to all flesh, and he returns saying he has seen what he did not think to see. The pity that rises in him cannot be quieted by the palace again.
He leaves in the night, sets aside the crown he could have worn, and becomes a seeker. The poem follows his years of search, his rejection of empty sacrifice and prayer, and the long night under the tree when the tempter Mara sends the great sins to break him. He answers each one, attains insight into the long chain of his past lives and the law by which each life reaps what the last one sowed, and rises enlightened.
The closing books bring him home in spirit and then set out the teaching plainly. Arnold renders the Four Noble Truths, the doctrine of Karma, and the Noble Eightfold Path as direct instruction in right doctrine, purpose, speech, and behavior. The poem ends with the image of the dewdrop slipping into the shining sea, its picture of a self that loses its separateness in the peace of Nirvana.