Soul-sickness

How many of the body's health complain,
When they some deeper malady conceal;
Some unrest of the soul, some secret pain,
Which thus its presence doth to them 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,
Whether in sunny clime, or sacred stream,
Or plant of wondrous powers of which we dream!