That specific reason isn’t stated in the small Recapy context you gave, so I’ll answer from the film itself:
- The Ocean senses something special in Moana: she’s the chief’s daughter (future leader), has strong natural curiosity about the sea, and the story frames her as having been “called” since childhood. - Moana’s ancestors were expert wayfinders, and she has that latent voyaging/leadership potential the islands need to restore their prosperity. - The Ocean acts as a sentient, guiding force that chooses someone with the courage, compassion, and determination to face Maui and return Te Fiti’s heart. Moana’s willingness to accept the call—despite fear and duty at home—proves she’s the right person.
If you want, I can point to the specific scenes/lines (Tala’s stories, the opening call, and the moment the Ocean gives her the heart) that show how the film builds this idea.
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