不羡鸳鸯不羡仙下一句是什么？这句诗词如何理解？

The searches confirm that “不羡鸳鸯不羡仙” is often paired with “羡煞人间白头偕老” or comes from a line like “得成比目何辞死，愿作鸳鸯不羡仙” (from Tang dynasty poet Lu Zhaolin’s “Chang’an Guyi”). Many sources interpret “只羡鸳鸯不羡仙” as the desire for enduring human love, not wanting to be an immortal. So my interpretation aligns. The direct next line “羡煞人间白头偕老” is a popular, modern interpretation/addition, not strictly from the original classical poem but captures the spirit of it. I should phrase it in a way that reflects my “discovery” of this commonly understood next line.

I will use for the phrase “羡煞人间白头偕老” as it is presented in the context of my search and discovery.

One thing to note is the title is “不羡鸳鸯不羡仙下一句是什么？这句诗词如何理解？”. My story should be about understanding this, and it does touch upon the “next line.”

The example content starts directly, without repeating the title. My content should do the same.

I need to make sure the tags are correct: `

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