In “your world” the speaker being described as a bird can best be inferred from which line?

Question

Your world is as big as you make it.
Then scared to the upmost reaches
And I throbbed with a bringing desire.
With rapture, with power, with ease

Answer 1

The speaker being described as a bird can best be inferred from the line "Then scared to the upmost reaches." This could suggest the speaker is feeling a sense of freedom or flight, similar to a bird.