Predetermination

To have disbelief in predetermination is a rational thing to do. That is, if you subscribe to the same logic as Pascal's wager.

If you believe in predetermination, and predetermination exists, you enjoy that things are secure and will work out. But if predetermination weren't true, you'd be left disappointed or confused.

However if you don't believe in predetermination, and predetermination is true, you will end up wherever you are meant to end up, and if predetermination were a false belief, you'd be right and thinking correctly.

So to disbelieve predetermination is a win/win situation, whereas there is a risk of disappointment in belief.

That being said, I have had lots of moments to think that something guides the coincidences in my life. But it is far more interesting to think they are pure coincidences.