In Nietzsche's philosophy the 'superman' broadly represents a human being who strives in his personal existence for the enhancement of all mankind (although the precise meaning of the term, as used by Nietzsche, is open to debate).
The meaning of 'Fingers of Destiny' in this context is not clear:
In palmistry, the middle finger, also known as 'Saturn's finger' is sometimes given the name 'the Finger of Destiny';
'Finger of Destiny' was also the title of a 1915 film directed by Charles Raymond.
However, neither of these ideas explains Virginia Woolf's use of 'Fingers of Destiny'.
Can anybody help?