This sentence means to thank you, and when it opens again, once you are old, you can't go back to your childhood.
exhort people to cherish time.
The whole poem is:
Flowers will bloom again, and people will never be young again.
it's not necessary to be fragrant and fresh when we meet.
The whole poem means:
Even if the flowers wither, they can bloom again the next year, but people are different. Every day is missing, and the youth is gone forever!
since friends and relatives meet, we should have a good drink, and there is no need to prepare rich dishes, otherwise there will be no fun.
Extended information:
When Chen Zhu was having a drink with others, he saw the blooming flowers in the yard and thought that he was in his twilight years. He was deeply moved at once, and made two poems on the spot, one of which was "Continued Nephew Pu's Two Drinks": "Flowers will reopen, and people will never be young again. When you meet and mix, you must be fragrant. " The first two sentences are simple and popular, that is to say, even if the flowers wither, they can bloom again in the next year, but people are different. Every day is less, and the youth time is gone forever!