What ceremony is John excluded from participating in ? How does he respond?

John did not receive permission to enter the kiva, a ritual initiation to turn the young boys into men. Instead, the other village boys drove him away into the desert with a barrage of stones. This incident highlighted his status as an outsider and made him lonely.

All alone, outside the pueblo, on the bare plain of the mesa. The rock was like bleached bones in the moonlight. Down in the valley, the coyotes were howling at the moon. The bruises hurt him, the cuts were still bleeding; but it was not for pain that he sobbed; it was because he was all alone, because he had been driven out, alone, into this skeleton world of rocks and moonlight. At the edge of the precipice he sat down. The moon was behind him; he looked down into the black shadow of the mesa, into the black shadow of death. He had only to take one step, one little jump. … He held out his right hand in the moonlight. From the cut on his wrist the blood was still oozing. Every few seconds a drop fell, dark, almost colourless in the dead light. Drop, drop, drop. To-morrow and to-morrow and to-morrow …

He had discovered Time and Death and God.