Getting and spending , we lay waste our powers:
Little we see in Nature that is ours;
We have given our hearts away, a sordid boon!
The Sea that bares her bosom to the moon;
The winds that will be howling at all hours,
And are up-gathered now like sleeping flowers;
For this, for everything, we are out of tune;
It moves us not.—Great God! I'd rather be
A Pagan suckled in a creed outworn;
So might I, standing on this pleasant lea,
Have glimpses that would make me less forlorn;
Have sight of Proteus rising from the sea;
Or hear old Triton blow his wreathèd horn.
Triton  is  Poseidon ’s son, who is able to calm the waves with his conch-shell horn. 
 Here he is with a nymph: 
 
 This is another reference to Greek mythology, or the  Pagan  religion. 
 The allusions to Pagan religions in this line and the last are used to further emphasize the conflict between the modern materialistic world and the old, nature-centered ways of the old world. It serves to show there was a time when people found the time to observe nature, and live as Wordsworth wishes they would live.
The world is too much with us...