What phrase from paragraph 3 is an example of something that is being described as “perennial “ ?

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"Nature is a setting that fits equally well a comic or a mourning piece. In good health, the air is a cordial of incredible virtue.

Crossing a bare common, in snow puddles, at twilight, under a clouded sky, without having in my thoughts any occurrence of special good fortune, I have enjoyed a perfect exhilaration. I am glad to the brink of fear.

In the woods too, a man casts off his years, as the snake his slough, and at what period soever of life, is always a child. In the woods, is perpetual youth. Within these plantations of God, a decorum and sanctity reign, a perennial festival is dressed, and the guest sees not how he should tire of them in a thousand years. In the woods, we return to reason and faith.."

-From "Nature" by Ralph Waldo Emerson; 1836

What phrase from paragraph 3 is an example of something that is being described as "perennial"?

perpetual youth

Explanation:

In this context, the word 'perennial', used to describe the festival that is nature, means that something is continuing, permanent.

Youth is described as perpetual, a synonym of perennial, to explain that in nature, humans, and animals, such as a snake, become young forever, 'always a child,' meaning that they are pleased in that environment and can never get tired of it.

it foreshadows the theme of the paragraph and hints the topic that will be discussed in the paragraph!