I've grudgingly come to admit that there's some luck in the world. A belief that luck doesn't exist is useful for getting a lot and developing a sense of internal control over one's life, but okay, there's random variables that hit.
A new definition of luck, then, is something like --
Luck: The outcome of variables outside of your control.
To reduce luck's impact on your life, you've got three options:
1. Increase your influence/control over events in your life.
2. Decrease the variables that matter to your end goal.
3. Or make outcomes less contingent on variables.
From "Miyamoto Musashi: The Masterless Samurai" by Albert E. Lyngzeidetson --
"[Musashi] admonishes the practitioner to not favor esoteric, unusual, or convoluted forms of combat. Indeed, he says that you should force your opponent to adopt these outlandish mannerisms, and then strike him down with one single well placed blow. The point is to be effective and dispatch the opponent as expeditiously as possible. Nothing else matters. In keeping with this sentiment, and true to his Zen roots, the warrior should be completely unconcerned with the loss of his own life or the taking of the opponent’s life. Life and death – no difference! This may seem quite cruel and crass to some, but the import of the attitude is this: if I am even the least bit apprehensive about losing my life in combat, this may promote a hesitancy or anxiety to act, and this very delay may indeed cost me my life due to making a fatal error."
A wealth of takeaways there --
*Focus on being effective, not on looking impressive.*Focus on the core outcome first and foremost.*Encourage adversaries to focus on impressive distractions and lose focus on the outcome.*Once committed to action, do not consider downsides -- just act.*Live in the moment, not in fear of a possible future outcome.
Eiji Yoshikawa's "Musashi" remains one of my favorite works, brilliance as both an adventure story and for its philosophy. Musashi's own writings -- Go Rin No Sho and Dokkodo -- also stand the test of time very well.