My mind was once the true survey
Of all these meadows fresh and gay;
And in the greenness of the grass
Did see its hopes as in a glass;
When Juliana came, and she
What I do to the grass, does to my thoughts and me.
But these, while I with sorrow pine,
Grew more luxuriant still and fine;
That not one blade of grass you spied,
Reading these lines again, we can infer that the mower takes pride in his perfectly kept grass, yet is infuriated by Juliana’s disruption of this. To add insult to injury, perhaps Juliana plays ‘coy’ (as women in Marvell’s poetry often do) and doesn’t even engage in the mower’s advances, but rather, rejects him. 
 Again,  this could be representative of  Adam and Eve,  and the corruption and downfall of men, at the hands of women.
The Mowers Song