I think it is simply about a swan. A swan in the form of a drug-induced hallucination. The swan is a metaphor for the hallucinogenic trip he's on. He is bordering more and more on insanity from his experience in his own mind, and finally the dystopic, "Forget the swan, the dreams are gone / The pain goes on, they fly at dawn" After the high has gone, the real pain of everyday life is back.
I think it is simply about a swan. A swan in the form of a drug-induced hallucination. The swan is a metaphor for the hallucinogenic trip he's on. He is bordering more and more on insanity from his experience in his own mind, and finally the dystopic, "Forget the swan, the dreams are gone / The pain goes on, they fly at dawn" After the high has gone, the real pain of everyday life is back.