Can you explain the metaphor of the 'parrot tied to a tube' and what it reveals about our true nature versus our perceived reality?

The metaphor of the 'parrot tied to a tube,' found in Chapter 17, illustrates the human condition. The parrot represents the pure self, which is equated with Brahman, while the tube symbolizes the physical body. The text explains that we have become bound by our association with the body, deluded by the 'Maya of infatuation,' which has caused us to forget our true, unbound nature. The advice given is to recognize this illusion, understand that the ego-centric ideas of "I and mine" are a mirage, and release our attachment to the body to metaphorically "fly high in the sky" and reclaim our true freedom.