The Great Journey, the path to transcendence followed by all of the species that served the Covenant, started early for all male Sangheili. As soon as they could run and hold a weapon in
their four-fingered hands, they were trained and evaluated for potential. Each young Sangheili was watched for strength and cunning and obedience to the teachings of the Covenant. They were tested extraordinarily, for their importance to the Great
Journey was extraordinary.-Chpt.14 pg.489