For Mechanism of Understanding to be appropriately put to use, we need to understand something called: "Law of Coincidence" and how it works.
Law of Coincidence states that: “when something of uncertain cause happen, there will always be another occurrence to ascertain its presumed cause.”
The fact is that Law of Coincidence will always occur, but it doesn't always mean occurrences that come to ascertain the cause of initial occurrence are accurate. They are not at all time right.
Remember the word "Presumed" it means, law of coincidence acts on your presumptions & assumptions. This law also relates with Law of Attraction, but the real cause is divine, not Law of Attraction. It means, if something happen and you are already thinking of what the cause is, something will happen to convince you of what you think is as the actual cause, whereas, you might be wrong, no matter how convincing. This does not happen because you think of it, which is why it cannot be said to be Law of Attraction. The cause seems divine, no one determines it.