Whose work is Peach Blossom in Dalin Temple? What does this poem mean?

Bai Juyi in Taohua Hall of Dalin Temple

The world in April is full of beauty,

Peach blossoms in the mountain temple are in full bloom.

I hate that spring is nowhere to be found,

I don't know how it got like this.

translate

April is the time when spring returns to the earth and the wheat straw falls to the ground.

The peach blossoms in the ancient temple in the mountains have just bloomed.

I often feel sad for the passing of spring and its nowhere to be found.

At this time, I was overjoyed to encounter spring scenery again, and suddenly realized: I didn't expect spring to be in this deep forest.

The poem means that the poet came to Dalin Temple in early summer, and it is time for spring to return to the earth in April at the foot of the mountain, and it is time for Fang Fei to run out. But unexpectedly, he met an unexpected spring scene-peach blossoms in full bloom in an ancient alpine temple.