1. "A grain of millet hides the world": This sentence is taken from the concept of "a grain of sand is a world, and a flower is a heaven" in Buddhism. It means that every tiny existence may contain a vast universe, and every life has its own universe. Here, this concept may be used to compare parents' kindness to their children.

2. "See more flowers outside the balcony": This sentence may mean that parents have created various environments and conditions for their children's growth, just like the balcony hidden behind flowers. Although invisible, it is real.

3. "Children grow up to be parents": This sentence means that when children grow up and understand the hard work and efforts of their parents, they must learn how to be parents. This also reflects the cycle of life and the inheritance of family relations.

4. "You can only know how to carry on the family line": This sentence emphasizes that only when a person becomes a parent can he truly understand and feel the hard work and love of his parents. This understanding is all-round, including the care of material life and the guidance of spiritual world.

Generally speaking, this poem may express deep gratitude to parents for their parenting and understanding of their great responsibilities. At the same time, this poem can also be regarded as a philosophical reflection on life and growth.