I held off the on obvious sexual references when this thread first appeared... Nudge, nudge. Wink, wink. Say no more.
As a FNG, I think I grasp the concept of "it" and embrace its tenets. It all comes down to what I call "cosmic credit" a.k.a. karma. My belief is that stupid things happen to stupid people. You only have to watch a couple of episodes of COPS to figure that one out.
People who don't get "it" tend to over-extend their cosmic credit cards. Thus, when there comes a time where they could really use "it", they don't have any "it" to spend. FWIW, the interest rate on cosmic credit is very high. On the other hand, people who manage their cosmic credit wisely will find that they can get as much of "it" as they need.
Lastly, I think everyone here has been around this world long enough to know that if you don't get "it" by now, you probably will never get "it." ???