After a tearful goodbye to his adoptive mother, Martha, Clark travels to the North Pole and throws the crystal into the Arctic Sea, causing a massive, crystalline structure – the Fortress of Solitude – to materialize, mirroring Kryptonian architecture. Entering the Fortress, Clark activates a console by inserting a crystal, which projects the image of Jor-El. The spirit of his father reveals Clark's true Kryptonian name, Kal-El, and begins a comprehensive training program, teaching him about his powers, Kryptonian history, and the strict mandate to never interfere with the natural progression of human history. Twelve years pass within the Fortress, during which Clark fully embraces his abilities and identity as Kal-El. Emerging from the ice, now a 30-year-old man in a red and blue costume bearing the symbol of his Kryptonian house, Clark takes flight, ready to dedicate himself to protecting the world from evil as Superman, his mission clearly defined: to combat crime and injustice with his extraordinary powers.
Late one night, Clark, now eighteen years old, finds himself going into the barn where he uncovers the wrecked spacecraft, and then finds the very thing that has called him: a now-glowing green Kryptonian crystal placed in the ship by Jor-El. Clark later says goodbye to his earthly mother and sets out toward the North Pole, where he flings the green crystal toward the Arctic Sea. From where it lands, it creates a 'Fortress of Solitude', a large structure resembling Kryptonian architecture. Clark enters, and after inserting a crystal into a tube, summons the spirit of his biological father Jor-El, who reveals to Clark his real name, Kal-El, and then, breaking from the confines of his earthly environment, teaches him what he needs to know about himself, his heritage, and about the powers he possesses (repeating that interfering with human history is forbidden). When they finish, twelve earth years have passed, and Clark, now thirty and wearing a red and blue costume with his Kryptonian house crest emblazoned on its chest, takes flight from the Fortress with his duty now clearly defined: to dedicate himself and his powers to a ceaseless battle against crime and injustice.
At age 18, soon after the death of Jonathan, Clark hears a psychic "call", discovering a glowing green crystal in the ship. It compels him to travel to the Arctic, where the crystal builds the Fortress of Solitude, resembling the architecture of Krypton. Inside, a vision of Jor-El explains Clark's origins, educating him in powers and responsibilities. After 12 years, with his powers fully developed, Clark leaves the Fortress with a colorful costume.
