Learning Survival Skills: Rost teaches Aloy how to gather medicinal plants (southbrush) to heal herself in the wilderness.br Avoiding Machines: Aloy learns to crouch and stay hidden from Watchers, a type of machine, emphasizing the importance of stealth to avoid detection.br Hunting Techniques: Rost instructs Aloy on using rocks to distract machines and how to craft hunter arrows from scavenged materials. She then makes her first kill, a Strider, by targeting its weak points.br Rescuing a Wounded Boy: Aloy demonstrates her stealth skills by navigating through dangerous machines to reach and lead a wounded boy to safety.br Aloy's Quest for Answers: After the rescue, Aloy questions Rost about her origins and why she is an outcast. Rost reveals that the Matriarchs know the truth and that winning "The Proving," a tribal rite of passage, could grant her a boon to ask them. This sets her on a path of rigorous training for years.br Rost's Disappearance: The video concludes with Aloy discovering Rost has left before "The Proving," leaving her to wonder where he went.