What is growth without poetry? What shrinks in youth?

What I want to ask is whether there is no poetry in growth and what will shrink in youth. If there is no poetry in growth, youth will shrink.

This sentence comes from "Poetry is the Best Companion in Life" published by Wu Baojun in Book Digest on June 0 1 2005.

The important role of poetry in the growth of children in China is discussed.