How did Lars Wivallius introduce a new feeling for nature into Swedish poetry?

In the context of 17th-century Swedish literature, Lars Wivallius introduced a new sensibility to poetry by infusing his lyrics with a genuine, personal appreciation for the beauties of nature.12

While much of the literature of his era was often formal or allegorical, Wivallius’s work stood out for its emotional connection to the natural world. This feeling was most notably expressed in his ballads, many of which were written during his years of imprisonment. A primary example of this is his poem Klagovisa över denna torra och kalla vår (1642; "Dirge over This Dry and Cold Spring"), in which he laments the harshness of the season he encountered upon his release from confinement. Through such works, he brought an intimate, observant quality to Swedish verse that departed from the more rigid literary conventions of the time.21