x is how much you are prepared,
y is how lucky you are.
You are responsible for the
x part of the equation, the
y takes care of itself. If your preparation effort is zero, all the potential opportunities will be multiplied by zero and you will lose every one of them, no matter how big they were.
The more prepared you are, the more lucky you become. It’s not because you are lucky, rather because you can multiply small opportunities by a big factor.
Always be ready to accept life’s mysterious gifts.