Basílio is a character from the novel "O Guarani," written by Brazilian author José de Alencar. He is portrayed as a noble and brave young man, deeply in love with Cecília, the daughter of a Portuguese nobleman. His character embodies the themes of love, honor, and the clash between different cultures in 19th-century Brazil. In the story, Basílio is a member of the indigenous Guarani tribe, which adds complexity to his character as he navigates his feelings for Cecília while facing societal challenges. His journey reflects the broader conflicts between indigenous peoples and European settlers during this period in Brazilian history.