If, then, we replace ‘metaphysical’ in Nietzsche’s formula by ‘unconscious,’ the desired key to the problem would be an unconscious ‘miracle.’ A ‘miracle’ is irrational, hence the act is an unconscious irrational happening, shaping itself without the assistance of reason and conscious purpose.
Jung psychologizes the miraculous, equating it with the autonomous, irrational activity of the unconscious that operates independently of ego-directed will.
, Psychological Types, 1921thesis