The Metamorphosis. by Franz Kafka. Home /; Literature /; The Metamorphosis /; Analysis The Metamorphosis Symbolism, Imagery, Allegory. BACK · NEXT The Vermin · The Picture Frame · Religious Imagery. Start studying Symbols and Symbolism in Metamorphosis by Franz Kafka. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The apple thrown at Greg by his father symbolizes the family's rejection of Greg's new life as a cockaroach. Once the family realized that Greg was no longer.