What does the poet Qiu Kui's poem "Closed House" mean "Chang Geng Accompanying the Waning Moon"?

This sentence comes from Song Dynasty poet Qiu Kui's "Closing the Household"

I came here to Pan, and I closed my house to make friends.

After giving birth to one or two generations, Chang Geng is accompanied by the waning moon.

The celery is always green, who can pick it with me?

Only in the splashing place, you can see the source of life.

The meaning of this sentence is: Chang Geng star stays with the moon until dawn. Describes the long night from dark to dawn.

Chang Geng: Venus, the ancients called Venus in the west at night Chang Geng.

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The waning moon: the moon before dawn;