1. Philosophy: The second sentence of the poem "The duck prophet comes when the spring river is warm", the vision is from far to near, that is, from the river bank to the river surface. The spring water on the river is rippling, and the restless ducks are playing in the river. The "Duck Prophet" side explains that the spring river water is still slightly chilly, so other animals are not yet sensitive to the coming of spring. This echoes the "three or two branches" of peach blossoms in the first sentence, indicating the early spring season.

2. This poem is based on a Tang Dynasty poem: Meng Jiao "What is the most prophetic? Xuxucao fights for it" ("After the Spring Rain"), Du Mu (a work by Xu Hun) "Pu Gen Shui warms the wild geese" At the beginning of the fall, the plum trees are fragrant and the cold bees are unknown" ("Early Spring Boat Ci"). Su Shi learned from the past but not from the past. He combined the creative ideas of his predecessors' poems with his own accumulation of observations to form this fine sentence.