Whatever satisfies the soul is truth.

re-examine all you have been told in school or church or in any book, and dismiss whatever insults your own soul; and your very flesh shall be a great poem, and have the richest fluency, not only in its words, but in the silent lines of its lips and face, and between the lashes of your eyes, and in every motion and joint of your body.

[From the preface to Leaves Grass]

This is thy hour O Soul, thy free flight into the wordless,
Away from books, away from art, the day erased, the lesson done,
Thee fully forth emerging, silent, gazing, pondering the themes thou lovest best.
Night, sleep, and the stars.

Song of myself
A child said What is the grass? fetching it to me with full hands;
How could I answer the child? I do not know what it is any more than he.

I guess it must be the flag of my disposition, out of hopeful green
stuff woven.

Or I guess it is the handkerchief of the Lord,
A scented gift and remembrancer designedly dropt,
Bearing the owner's name someway in the corners, that we may see
and remark, and say Whose?

Or I guess the grass is itself a child, the produced babe of the vegetation.

I have said that the soul is not more than the body,
And I have said that the body is not more than the soul,
And nothing, not God, is greater to one than one's-self is,

Re-examine all you have been told. Dismiss what insults your soul.