O man! hold thee on in courage of soul
Through the stormy shades of thy wordly way,
And the billows of clouds that around thee roll
Shall sleep in the light of a wondrous day,
Where hell and heaven shall leave thee free
To the universe of destiny.

This world is the nurse of all we know,
This world is the mother of all we feel,
And the coming of death is a fearful blow
To a brain unencompass'd by nerves of steel:
When all that we know, or feel, or see,
Shall pass like an unreal mystery.

The secret things of the grave are there,
Where all but this frame must surely be,
Though the fine-wrought eye and the wondrous ear
No longer will live, to hear or to see
All that is great and all that is strange
In the boundless realm of unending change.

Who telleth a tale of unspeaking death?
Who lifteth the veil of what is to come?
Who painteth the shadows that are beneath
The wide-winding caves of the peopled tomb?
Or uniteth the hopes of what shall be
With the fears and the love for that which we see?

Percy Bysshe Shelley (1792–1822)