Threshold

The doorway is passable, but few are ready yet to cross the threshold and enter the hallway beyond.
Doomed to do it again & again, no choice but to play a Phoenix in an unending sequence of rise & fall.
Assyria, Babylon, Egypt, Greece, Carthage, Rome: ground to dust; plowed with salt.
Spain, France, Britain, America – burned into the oblivion of centuries.
A Canticle For Leibowitz by Walter M. Miller, Jr. (1959)
In a dark sea of centuries wherein nothing seemed to flow, a lifetime was only a brief eddy, even for the man who lived it. There was a tedium of repeated days and repeated seasons; then there were aches and pains, and finally Extreme Unction.
And a moment of blackness at the end – or at the beginning, rather.
For then the small shivering soul who had endured the tedium, endured it badly or well, would find itself in a place of light, find itself absorbed in the burning gaze of infinitely compassionate eyes as it stood before the Just One. It would be hard to believe differently.
A Canticle for Leibowitz (1959) by Walter Miller
Singularity: The expected moment in history when the amplification of human intelligence begins to accelerate exponentially by the application of advanced technologies to augment the brain. –Raymond Kurzweil
All is lightness & bright;
While the forces of nature
Show us the height
Of the Universe’s favor.
fortnight = 14 days; stone = 14 pounds