"Keep your small mind open," Nana told Jannie, wagging her crooked pinkie finger. She encouraged Jannie to be receptive to new ideas and perspectives, implying that being open-minded can help expand one's understanding and maturity.
This advice suggests that growth, both intellectual and personal, depends on maintaining an open attitude. Nana's words highlight the importance of curiosity and flexibility in thinking to avoid staying confined within limited viewpoints, ultimately fostering development throughout life.