Can you explain the text's metaphor of a 'parrot tied to a tube' and how one can achieve spiritual freedom from this state?

The text uses a powerful metaphor to describe the human condition. According to Chapter 17, a person should advise themselves that they are the "pure Brahman yourself; you have become bound by the company of the body, like a parrot tied to a tube." This bondage is not our true nature but a state of delusion caused by the Maya of infatuation and bodily ego, which makes us forget our true Self. To achieve freedom, one must wake up, recognize the concepts of "I and mine" as a mirage, and release the tightly held feet of worldly entanglement. The text urges the soul, like the parrot, to "fly high in the sky" by transcending the dualities of bondage and liberation to remain in a pure, self-controlled state.