The following is an ancient fable
I have often used to describe my personal belief in destiny vs. free will.
'There was a merchant in Baghdad who sent his servant to market to buy provisions and in a
little while the servant came back, white and trembling and said "Master, just now I was in the
market-place and was jostled by a woman in the crowd and when I turned I saw it was Death that jostled me. She looked at me
and made a threatening gesture, now, lend my your horse, and I will ride away from this city and avoid my fate. I will go
to Samarra and there Death will not find me." The merchant lent him his horse and the servant mounted it and dug his
spurs into its' flanks and as fast as the horse could gallop he went. Then the merchant went down to the market-place and
he saw me standing in the crowd and he came to me and said "Why did you make a threatening gesture to my servant
when you saw him this morning?" "That was not a threatening gesture" I said "it was a start of surprise.
I was astonished to see him in Baghdad, for I had an appointment with him tonight in Samarra."