Poetry can be a way to teach. Here is one poem from Bone of Space: Zen Poems by Master Seung Sahn.
Autumn leaves fall in the cold wind.
Is there right or wrong in this?
Here is a scripture not made of paper
And there are no words in it
Yet it’s pages constantly emit light
Brightening the darkness
And each thing becomes clear as it is:
Mountain is mountain, river is river;
Red comes, red;
White comes, white.