Both use flashback to provide crucial background to the characters' situation
"This is the second activity in the repetition strategy" indicates that the word revisit would be the best word to use to sum up the idea since repetition strategy definitely suggests revisiting. Something which is repeated is done over again so in the act of re-doing it it means it is also re-visited.
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rather keep our stories, especially the dark parts of our lives, to ourselves. However,
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If you don't mind can you insert a picture so I can help you it would be helpful.
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