Which book is it from: It’s Raining Carrots in Rabbit’s World?

It rains carrots in the Rabbit's World from "The Rabbit's World". What is happiness? Happiness is like the rain of carrots in the world of rabbits. Meeting you is like the rain of carrots in the world of rabbits. If you are willing to peel off my heart layer by layer, you will find the inside. There are small cakes, biscuits, strawberry candies, chocolate, potato chips, milk, and you. It was only at night when the moon was gray that I realized that the moon also covers itself with quilts when sleeping.