There’s this episode in the show Supernatural where Sam relives the same day for I believe a whole month.  Each day, he experiences his brother Dean dying in various different ways. Whether it be being shot, stabbed, run over by a car or simply choking. It was revealed that Loki, the god of mischief, was behind this and wanted to toy with Sam. He wanted Sam to realizes Dean, who at that point made a pact to sacrifice his soul to the devil in order to save Sam, is doomed and Sam could not do a damn thing about it.

If you had the choice to relive one day, as many times as you want, and with a flip of a switch, continue time at any point, what day would it be? Would it be to relive one of the best days of your life? Would it be to change how things are? Decisions you’ve made that day? Or would you relive one of the worst days of your life, in order to cope with the trauma?