Thank you.     The taoist concept of "luck" is a major stochastic science.  I already wrote before about the deceptive simplicity of taoist scientific terminology that might cause a Westerner (or a Western style educated Chinese, which is to say nearly every modern Chinese) to mistake it for a sign of a "primitive" "unscientific" cognitive paradigm.  In the West we say probability theory or chaos theory or genetics or quantum mechanics and allow only Ph.D.s to count as experts on their intricacies, while traditional taoists say "luck" and allow only folks with top notch training upwards of what a Ph.D. degree in all of the above and more would require (over 30 years of schooling and empirical applications) to count as experts -- and still those experts, some of whom have invested tens of thousands of hours into their education, will say "luck," because there's no need to get fancy when you're dealing with a fundamental principle of the universe, you can just stay fundamental.  And they do.  But of course I am not this kind of  expert.  Luck is the mover and shaker of the destiny of the universe, so you need time and...  well...  luck to master it -- but on any level of mastery you will still only scratch the surface.  However, such "scratching" may make a big dent in a particular human's destiny.