Reference to the soul

I will not make poems with reference to parts,
But I will make poems, songs, thoughts, with reference to ensemble,
And I will not sing with reference to a day, but with reference to all days,
And I will not make a poem nor the least part of a poem but has reference to the soul,
Because having look'd at the objects of the universe, I find there 
is no one nor any particle of one but has reference to the soul.

Walt Whitman, da Leaves of Grass