It expresses the poet's sadness about life and his feelings about the impermanence of life and death. He who sees through everything is broad-minded and even decadent, which shows the negative side of feudal intellectuals' outlook on life.
Whole poem:
Nine-day mountain climbing
On the river, the geese just flew south, and they made friends with wine and hip flask mountain.
Laughter makes people laugh, when chrysanthemums are in full bloom.
Only by indulging in the Double Ninth Festival, there is no need to sigh and hate the afterglow of the sunset.
After all, life is a short history, so why do you cry like Qi Jinggong?