Meaning:
First, "Li" does not refer to Li Bai, but to such a person who is regarded as a gifted scholar. Peach does not mean birthday peach, but refers to peach tree, which is used in the same way as Li.
Second: "all over the world" means the whole world. From Bai Juyi's poem "Let your husband have peaches and plums all over the world, why not plant flowers in front of the hall", it can be inferred that peaches and plums are flowers, not people, not fruits.
Generally speaking, peaches and plums have only four meanings:
1 peach blossom and plum blossom "Poem Zhao Nan Hebi I": "Hebi I, flowers like peaches and plums." Later, it was described as beautiful because of "peaches and plums".
2. Metaphorically cultivate the younger generation and teach the students.
3. The metaphor of youth. < Ming > Xu Wei's Qi Gongyan: "I swear to accept the effect of Sang Yu, so as not to humiliate peaches and plums, to pay for this statement."
4. Yu is a villain and a mediocre person with low personal quality. Poem 1 of Tang Li Bai's "Gift to Wei Feng": "Peaches and plums sell fine, and passers-by are fascinated; When spring is over, its leaves turn to yellow mud. I hope your seniors are sloppy, and be careful not to be full of peaches and plums. " So' peach' can't be understood as longevity peach, and' Li' can be understood as Li Bai.