New Rennaissance

To Martin Heidegger, Nietzsche's doctrine of the Eternal Recurrence of the Same marked "the beginning of the 'tragic age for Europe' ".
['Nietzsche Vol II', Heidegger]

If Nietzsche signifies the completion of that philosophic cycle which began with Socrates, then his doctrine of Eternal Return makes a reversion to the Presocratic.
Taking up where the Presocratics left off, and attempting to swim in the river of Heraean fluxions.

The doctrine of Eternal Return is something that one would have come across in the ancient Pythagorean Brotherhood. What kind of Europe would have emerged if its major religion was founded on the work of Heraus rather than that of Plato?

In the 'Joyful Wisdom' [1882] the Eternal return is broached by Nietzsche.

Book IV of that work is entitled 'SANCTUS JANUARIUS' after a saint whose dried Blood is supposedly kept in a vial in a church in Naples. The Blood is said to become liquid again annually on a certain feast-day. And with this book, Nietzsche feels that his own Blood has become liquified again.
The title page has a short verse written in Genoa, January 1882;

SANCTUS JANUARIUS
With a flaming spear you crushed
All its ice until my soul
Roaring toward the ocean rushed
Of its highest hope and goal.
Ever healthier it swells,
Lovingly compelled but free:
Thus it lauds your miracles,
Fairest month of January!

This miracle betokens the new beginning, the tragic age of Europe.
This miracle is palingenesis; January, the month of Janus, the Roman god of gates and beginnings.
In this book Nietzsche introduces Zarathustra with the words, 'the tragedy begins', and in Thus Spake Zarathustra, the book which follows, the Eternal Return is explicated in the story of the Gateway [TSZ 'On the Vision and the Riddle'].
This Janus looks back and forward at once - a tremendous going across, a tremendous going back.
The whole project of the completion of metaphysics and a return to the Presocratics as Heidegger sees it, symbolised by Janus.

"Two-headed gods and figures, such as Janus, symbolise the beginning and the end; past and future; yesterday and today; solar and lunar power, also Lunus-Lunar; the descending and ascending power of the Sun; the choice at the crossroads; Destiny; the beginning of any enterprise and journey, departure and Return; the powers of opening and closing Doors.
The two heads also represent judgment and discernment; cause and effect ..."
[Encyclopedia of Symbols, Cooper]

Griffin sees this sense of 'rebirth', of palingenesis as the 'Mythic Core of Fascism';
"The coherence exists not at the surface level of specific verbalised ideas, but at the structural level of the myth which underlies them, serving as a matrix which determines which types of thought are selected...
The Fascist felt he had been fatefully born at a watershed between national decline and national regeneration, a feeling that alchemically converted all pessimism and cultural despair into a manic sense of purpose and optimism ".
[Fascism, Griffin]

Here we have Amor Fati out of the Eternal Return; Janus facing both the past and future at once as the new order of a Good Europa is created based solely on Nietzschean philosophy.

"Our thinking today is chaged with the task to think what the Greeks have thought in an even more Greek manner".
['On the Way to Language', Heidegger, 1954]