Context of the passage to the Rocking horse Winner

passage: He went off by himself, vaguely, in a childish way, seeking the clue to "luck." Absorbed, taking of stealth, seeking inwardly for luck. He wanted luck, he wanted it, he wanted it. When the two girls were playing dolls in the nursery, he would sit on his big rocky-horse, charging madly into space, with a frenzy that made the little girls peer at him uneasily. ... his eyes had a strange glare in them. The little girls dared not to speak to him.
"The Rocking-Horse Winner" (1932) is one of D.H Lawrence's most famous short stories, and has endured the test of time. A critical ana…