For a person in a relationship with GOD, life will not be free of tragedies, but the attendant misery will be replaced by joy; sometimes quickly, sometimes slowly, but it will come.
I agree with Jay that " ...the attendant misery will be replaced by joy... sometimes quickly, sometimes slowly...."
In addition, I would add that misery may sometimes also be transformed into joy.
When I was young, my 15-year-old brother drowned. During his funeral, one of the most hope-filled comforts I received was given me by my pastor's wife:
"You think about him now, and you want to weep. But someday you'll think about him, and smile."
That happened 47 years ago, and she was right! The memory of my brother has proved an instance in which God slowly transformed my misery into joy.
Good answers preceed mine. Night symbolizes sadness and is associated with the weeping and sadness and joy is associated with the brightness of the moring light from the first sunrise to the noonday bright. So it saying that the darkest night of weeping and sadness will pass and give way to the joy that always comes after the darkest night when God gives us the new dawning and joy.
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