In this week's poetic term from A Poet’s Glossary, poet Edward Hirsch defines aisling, which means "dream" in Irish. "The aisling (pronounced “ashling”) is a vision or dream poem, which developed in Gaelic poetry in Munster during the late seventeenth and eighteenth centuries. It has its origins in the Old French reverdie, which celebrates the arrival of spring, often in the form of a beautiful woman. The aislingí present and personify Ireland in the form of a woman, who can be young or old, haggard or beautiful, lamenting her woes."