You have to learn a few things, which you do along the way, but basically, poetry is a matter of the ear. Iambic pentameters or what constitutes a stanza comes naturally – your ears will know.
VIKRAM SETH
All you who sleep tonight Far from the ones you love, No hand to left or right, An emptiness above– Know that you aren’t alone. The whole world shares your tears, Some for two nights or one, And some for all your years.
