Fate and destiny are unpredictable elements of life; martial arts and personal evolution are equally unpredictable.
Rarely can any one individual carve out or create a perfect step by step template to health, happiness and success; no doubt, reality is just the opposite.
We all have to play the cards of life that are dealt to us; some fail, others tread water, while others prosper.
It's difficult to say if we can attribute success or failure to fate or destiny but it is an interesting dichotomy in which to ponder.
Martial arts encapsulates any and all aspects of life's journey and through it all we can apply mental toughness (mind), physiological science (body) and spiritual/philosophical ideals (spirit),,,,
Adapt, overcome, and survive.