In "Ode to a Nightangle" what is the 3rd stanza talking about?Fade far away, dissolve, and quite forget What thou among the leaves hast never...

The speaker wants to join the nightingale in the woods and
forget his own troubles and sorrows. The speaker perceives the woods as a beautiful,
tranquil place devoid of worries and death. In his view, the nightingale has it made.
However, the speaker cannot shake his thoughts of a world where people grow older and
sickly and lose their youth. He despises the idea of people growing older. The speaker
seems obsessed with death, although he never mentions it directly. The enemy he
identifies is thinking, which leads to sorrow and despair. For example, he knows every
beautiful, young girl is going to lose her looks as she ages, and that red hot steamy
love you found today inevitably will turn cold. This dude is dark and thinks dark. He
would not be a great date unless you like brooding guys.