Imagine a world, a dimension where everything possible is happening at the same time, all scenarios all being played at once. Say, it's Sunday afternoon and you go to the movies, but there is also another version - you choose to stay at home. And yet another - you get visitors, or someone gives you a puppy named Sunday. And so on. I'm sure, you get the point.
You, of course, get to pick only one option at a time, and that's how your life goes.
Now, imagine that somehow you manage to tap into this hidden, unknown dimension, this matrix and therefore are able to gain more control over your life. Knowing all options, you get to materialize the sequence that you choose. All others will not materialize and will be absent from your life, for example the visitors don't show up that sunday or you don't get the puppy.
Now, nobody or at least, not many of us have the ability to tap into this unknown grid of events. But perhaps, some of those events that we would call meaningful (like being given a puppy named Sunday on a Sunday) somehow "get through" to our physical world and become visible. The mechanism behind them, the world where they come from is hidden from us and that's why we, not being privy to it, call such events coincidence.
No need to take this post seriously