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One beautiful February day, Mum died, and my life as an orphan began. Or so I thought.
We stuck together through the wake. Dad, my sister, my three brothers and I. All of us shone through those moments.

What does the 'those' in bold refer to? 'The good old days'? Or does it refer to the wake?
Comments  
shone those moments?
I can't make heads or tails of it!
CJ
 What do you mean? You think it could indeed refer to the wake?
...Oops, I've found that I deleted 'through' by mistake. I've fixed it.
So now, what do you think? 
Students: Are you brave enough to let our tutors analyse your pronunciation?
shine 3 b: to perform extremely well (www.m-w.com)

shone through those moments = behaved/coped well during those bad times.
I don't take it to be the wake itself necessarily, but to the whole period of the death, the funeral, burial, etc.
CJ
What comes next could make a difference; "those" could also point forward:

"We shone through those moments. Leaving the funeral in a stretch limo. Flying to Naples, for two well-earned weeks in the sun. Planning how we would spend the rest of the insurance money, late at night in our suite, as Dad frolicked away the first few thousand with the Belarusian twins..."

MrP
Your 'point forward' means  'point the following sentences', right? 
In fact, in the text I have, it seems that 'those' points the following content, several happenings described after the sentence in question.
Thank you, MrP and Jim! 
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Sorry, yes: "point to material in the following sentences".

All the best,

MrP