For the heart whose woes are legion

’T is a peaceful, soothing region—

For the spirit that walks in shadow

’T is—oh, ’t is an Eldorado!

But the traveller, travelling through it,

May not—dare not openly view it;

Never its mysteries are exposed

To the weak human eye unclosed;

So wills its King, who hath forbid

The uplifting of the fring’d lid;

And thus the sad Soul that here passes

Beholds it but through darkened glasses.

Dreamland (lines 39-50)
Edgar Allen Poe