I am the poet of reality
I say the earth is not an echo
Nor man an apparition;
But all the things seen are real,
The witness and albic dawn of things equally real
I have split the earth and the hard coal and rocks and the solid bed of the sea
And went down to reconnoitre there a long time,
And bring back a report,
And I understand that those are positive and dense every one
And that what they appear to a child they are
[And that the world is not a joke,
Nor any part of it a sham].

This unfinished poem by Walt Whitman (published in this form in A Book of Luminous Things edited by Czeslaw Milosz) expresses so perfectly my need for the solidity of the physical to mean something.

I do find evidence for the unseen in the seen, and sometimes I think this is why I love so much what I see.