The crimson dawn breaks through the clouded east,
And waking breezes round the casement pipe;
They blow the globes of dew from opening buds,
And steal the odors of the sleeping flowers.
The swallow calls its young ones from the eaves,
To dart above their shadows on the lake,
The natural world has been one of the recurring subjects of poetry, frequently the primary one, in every age and every country. Yet we cannot easily define nature, which, as Gary Snyder points out in his preface to No Nature (1992), “will not fulfill our conceptions or assumptions” and “will dodge our expectations and theoretical models.” Yet the urge to describe the natural world—its various landscapes, its changing seasons, its surrounding phenomena—has been an inescapable part of the history of poetry.