Poem about faith and doubt

HOW many of the body's health complain,
When they some deeper malady conceal;
Some unrest of the sould, some secret pain,
Which thus its presence doth to theem reveal.
Vain would we seek, by the physician's aid,
A name for this soul-sickness e'er to find;
A remedy for health and strength decayed,
Whose cause and cure are wholly of the mind
To higher nature is the soul allied,
And restless seeks its being's Source to know;
Finding not health nor strength in aught beside;
How often vainly sought in things below,

The morning comes, and thickening clouds prevail,
Hanging like curtains all the horizon round,
Or overhead in heavy stillness sail;
So still is day, it seems like night profound;
Scarce by the city’s din the air is stirred,
And dull and deadened comes its every sound;
The cock’s shrill, piercing voice subdued is heard,
By the thick folds of muffling vapors drowned.
Dissolved in mists the hills and trees appear,

There is a drear and lonely tract of hell
From all the common gloom removed afar:
A flat, sad land it is, where shadows are,
Whose lorn estate my verse may never tell.
I walked among them and I knew them well:
Men I had slandered on life's little star
For churls and sluggards; and I knew the scar
Upon their brows of woe ineffable.