Question: If something unexpected (and incredibly unlikely) happens, should we take it as something deeper or just a fact of life?

Something highly unlikely and very positive happened at a very bad and negative point in my life, this event arguably showed a very different future to the one I imagined.

Don't know how to read into it, or how my actions should be after the event, should I embrace the change?

Answer: 
My teacher taught me that I must choose how I interpret such events in whichever way that produces the most wholesome mindstates.

So if thinking that this event was a sign from the hidden nature of things and held special significance makes you stronger, go for it with no hesitation. This is called, utilizing the power of faith.

In Varjrayana we learn to see hidden connections between things, hidden patterns and relationships. So having a sense of intuition for special events in one's life is important in our practice. In the absence of egoistic desires, and the baselessness of Emptiness, how else can we pick the course of action? So we choose to interpret things in a certain way, and act based on that. It's more an art than a science but there is a system to it.
People normaly act "for a reason" but to put it right, phenomenas arise "out of reason", have causes. So by focus just on giving right causes, phenomenas appear likewise, are experianced according the causes given. The highest cause to go beyound being subject to causes, is the fullfilment of the Eightfold path. There *is* just one unconditioned Dhamma, yet not to be found without giving the right causes.

All beyond that, beyond [the all](http://zugangzureinsicht.org/html/tipitaka/sn/sn35/sn35.023.than_en.html), is just philosophy.

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> 'Repudiating this All, I will describe another,' if questioned on what exactly might be the grounds for his statement, would be unable to explain, and furthermore, would be put to grief. Why? Because it lies beyond range."
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One saying: "Not everything happens for (better 'out of') a reason." would not speak in accordiance with the Dhamma, does not flow in the stream of Dhamma. Since: [By touch](http://zugangzureinsicht.org/html/tipitaka/sn/sn25/sn25.004.than_en.html) dhammas are experianced. Every explaining else is not really possible and subject to errors. [Suttas](https://www.accesstoinsight.org/tipitaka/sn/sn36/sn36.021.than.html) have to be readed carefully, with proper attention, seeking release not something to grasp. Otherwise the Dhamma is like a snake grasp on its tail.

*[Note: This is a gift of Dhamma and not meant for commercial purpose or other low wordily gains by means of trade and exchange.]*