Lone Power as a symbol of evil
To symbolize evil, the author uses the antagonist, Lone Power. The Lone Power was part of the commanding magical creatures that controlled the world. However, he went against the creator of the magical creatures and chose a different path. As a punishment, the supreme power punished the Lone Power by death. Therefore, the Lone power created death and became a symbol of evil. Consequently, Lone Power threatens all wizards, including Nita, Fred, and Kit.
Nita is a symbol of determination.
First, Nita is depicted as prey, bullied, and physically humiliated by her classmates. However, Nita is determined to fight back; at first, she does not know how to be influential. When Nita comes across a wizard book, she cautiously learns how to become powerful. At last, Nita becomes a wizard, and she goes back to frustrate her bullies. With her magical power, Nita is safe, and she can command her bullies to do what she wants them to follow. Therefore, Nita's determination to obtain magical powers is realized when she becomes a wizard.
The book of light
The author, to represent life, emblematically uses the book of light. When Nita and her fellow wizards travel to the alternate world, they see the book of light. However, the book of light is in endless conflict with the book of darkness. Ultimately, the dark creature represented by the book of darkness is defeated. When Nita discovers that the dark creature is defeated, she becomes livelier and understands that nobody can ever intimidate her again.