What symbolism does Brooks pet bird Jake stand for?

In "The Bean Eaters" by Gwendolyn Brooks, the pet bird Jake symbolizes freedom and the fleeting nature of life. His vibrant presence contrasts with the mundane existence of the elderly couple, representing the joy and vitality that once filled their lives. Additionally, Jake serves as a reminder of lost aspirations and the passage of time, highlighting themes of nostalgia and the desire for liberation from the constraints of old age.