There are times when you need to go backwards. In time. When you've taken the wrong exit on the highway. When you've misplaced something and need to retrace your steps, etc, etc.. I'm sure you've done all these at least once in your life.
It's good you know. To look `behind' you; to take a peek at yesterday. Only if you want to learn from these past experiences. Only if you reflect.
It could be the opposite reaction as well. You may get sad, maybe even depressed. For it may have opened up old wounds. Or because what you have in the present may not be as good as what you had in the past. But it's best not to go in that direction. What should be done is know that everything happens for a reason. And what you think was best for you may not have been the best after all...
On the radio this morning it said that people make mistakes all the time. It's inevitable since we are humans. The whole point of it is not to focus on the mistake that was made but what are you going to do about it after making that mistake.The answer is: don't do it again. Vow to be better. Vow to never repeat it. Make things better.
So if you need to go blasting to the past.. whether to reminisce a good memory or a bad one, take away something from it. Something you can put to good use. Something that will make you a better person.