“But first a hush of peace, a soundless calm descends;
The struggle of distress and fierce impatience ends
Mute music sooths my breast — unuttered harmony
That I could never dream till earth was lost to me.

Then dawns the Invisible; the Unseen its truth reveals;
My outward sense is gone, my inward essence feels —
Its wings are almost free, its home, its harbour found;
Measuring the gulf, it stoops and dares the final bound —

O, dreadful is the check — intense the agony
When the ear begins to hear and the eye begins to see;
When the pulse begins to throb, the brain to think again,
The soul to feel the flesh and the flesh to feel the chain.

Yet I would lose no sting, would wish no torture less;
The more that anguish racks the earlier it will bless;
And robed in fires of Hell, or bright with heavenly shine
If it but herald Death, the vision is divine —”

The Prisoner (October 1845)
Context: p>But first a hush of peace, a soundless calm descends;
The struggle of distress and fierce impatience ends
Mute music sooths my breast — unuttered harmony
That I could never dream till earth was lost to me.Then dawns the Invisible; the Unseen its truth reveals;
My outward sense is gone, my inward essence feels —
Its wings are almost free, its home, its harbour found;
Measuring the gulf, it stoops and dares the final bound — O, dreadful is the check — intense the agony
When the ear begins to hear and the eye begins to see;
When the pulse begins to throb, the brain to think again,
The soul to feel the flesh and the flesh to feel the chain.Yet I would lose no sting, would wish no torture less;
The more that anguish racks the earlier it will bless;
And robed in fires of Hell, or bright with heavenly shine
If it but herald Death, the vision is divine —</p

Source: The Wall

Source: The Importance of Living (1937), p. 407
Context: I feel, like all modern Americans, no consciousness of sin and simply do not believe in it. All I know is that if God loves me only half as much as my mother does, he will not send me to Hell. That is a final fact of my inner consciousness, and for no religion could I deny its truth.

"The Death of the Ball Turret Gunner" http://www.cs.rice.edu/~ssiyer/minstrels/poems/707.html, complete poem
Little Friend, Little Friend (1945)

Solitude http://www.newmanreader.org/works/verses/verse1.html (1818).

Canto IV
The Troubadour (1825)

Guilt and Sorrow, st. 41 (1791-1794) Section XLI

Preface
What is Property? (1840)

Source: The Sirens of Titan (1959), Chapter 1 “Between Timid and Timbuktu” (p. 8)