Have you ever experienced a coincidence so improbable, you wondered if there was more to it than mere chance? That's the definition of synchronicity: a meaningful coincidence.
Most of the time these synchronicities can be dismissed, because it can easily be a product of biases, such as confirmation bias. For instance, if you see recurring numbers, you're going to pay more attention to them, therefore you'll inevitably see more.
But when the odds of a coincidence occurring are extremely low, that's when you know it could be a synchronicity. Especially when you experience them on a frequent basis. Once you notice one, it usually attracts more, and it can get to the point where your life is a continuum of synchronicities.
I'm not really sure what they are. But my best guess is synchronicities are a manifestation of the quantum field. Reality is created by consciousness, therefore your subconscious mind could potentially influence reality. For instance, if you desire something, you may experience synchronicities that help you achieve it.
I've also noticed they're strongly tied to flow state. Once you're in flow, the amount of synchronicities in your life increases. It's as if you're acting in alignment with universal timing, so you can get to where you need to go at the perfect moment. Steve Jobs said it well:
"You can't connect the dots looking forward; you can only connect them looking backwards. So you have to trust that the dots will somehow connect in your future." — Steve Jobs
Once you begin experiencing them, they enable you to trust the flow of life rather than resisting whatever happens. Even if something appears negative on the surface, you don't know how it'll play out in the future. It enables you to be stoic because you understand with every downside, there's also an upside.
This is something I've experienced in my own life. Weird things seem to happen, as if you're lucky. You end up at the right place at the right time, meeting the right people to help you on your journey. It's truly remarkable and opens your eyes to what's possible.
For this reason, I think synchronicities are a flow trigger because they enable you to let go, take risks, and trust the process. They wake you up from the trance we spend most of our lives in.
If you're sceptical (which you should be, don't believe everything you're told), try it out for yourself. Be open to the possibility they're real, and ask the universe for an experience so improbable it leaves no room for doubt.
If it works, keep doing it to prove to yourself you're not delusional. And if it fails, you haven't lost anything. Either way, it's definitely worth trying because the implications are huge if they're real.