What is the meaning of poetry? What can poetry express?

Poetry is the oldest and most basic literary form in the world, and it is a literary genre that expounds the soul. Poets need to master mature artistic skills and express social life and human spiritual world with concise language, rich emotions and rich images according to certain requirements of syllables, tones and rhythms. In ancient China, unhappy people were called poems and happy people were called songs. Later people call it poetry.