Being fully ready does not happen overnight. It comes with years of preparation.
Then, one day after years of prep, opportunity knocks on your door and changes the direction of everything you do. Most people call that luck. And true luck certainly plays a part, however, without prep, luck would not get too far.
So prepare every day. Nay, every hour, towards your chosen dream. Then, when Lady Luck shows up you will be fully able to seize the opportunity!
When prep, luck, and opportunity coincide you get the formula for success!