Amor fati is, as a formula for greatness, the idea that one wants nothing to be different, not forward, not backward, not in all eternity. Not merely bear what is necessary, still less conceal it all idealism is mendaciousness in the face of what is necessary but love it.
Amor fati is to want nothing to be other than it is, not in the future, not in the past, not in all eternity.
Amor fati is the absolute love of fate (i.e. Of what is necessary in things). It involves a staunch refusal to denounce or accuse or accuse those who accuse things as they are, have been, or will be.
Amor fati is the act of freely assuming what is otherwise necessary. It is the activity of submitting oneself to the inevitable.