I hope all is well with you.
First, you're talking about a favorite 'saying' not a 'word'.
"Life is like a box of chocolates, you never know what you're gonna get."
Here's why that's true.
Look at this box of chocolates:
They all look delicious, BUT, you can't tell just by looking
at what will be inside
each of those chocolates. Suppose you like the sweet almond paste ones, can you tell which of those chocolates have the almond paste inside?
You won't really know what kind of chocolate you are going to get until you bite into the piece.
One that looks like a nice soft one, could be filled with crunchy nougat. (not my favorite).
The same with life in so many ways. As we go through our lives and times, we meet up with so many unexpected things, some of them good, some of them bad, some of them the result of choices we have made that turned out completely different than what we thought would happen.
Here's the choices that are before you.
Try your best to pick the one you want, but you never know.......
I'm sure others have said similar thing to you on this thread. This is just my two cents.
And I said that because I've always wanted to use that emoticon and never had the opportunity.
Be well, stay well,