See how the Orient Dew,
Shed from the Bosom of the Morn
Into the blowing Roses,
Yet careless of its Mansion new;
For the clear Region where 'twas born
Round in its self incloses:
And in its little Globes Extent,
The dewdrop is not “careless” in the sense of “ignorant” or “neglectful,” but rather, the dewdrop could not care any less at all about his new habitation, the earth, even though it is described as a “mansion new.”  The dewdrop longs for reunion with the heavens and considers its new mansion to be corrupt and corrupting.
On A Drop Of Dew