By line 80, JOHN KEATS has described the skylark as having certain traits and characteristics. What are these? How are they wonderful traits for a person or poet?

The speaker asks the skylark to share with him the secret of its joy because its happiness is not like the happiness that mankind seem to know. He is stating that man only knows happiness as an absense of pain. But, if the speaker can but know and understand this happiness of the skylark then he can write poems that will change the hearts and minds of mankind.