Yeah, we’ve made mistakes in our past. Yeah, we’d like to not be the “kind of person” to make those mistakes again. We’d be very glad to be past it.
But of course, how will we know that we won’t? How will we know that, when the time comes, we’ll make the right choices, if we’ve made the wrong ones in the past?
The thing is, you have intentions – those intentions are what cause you to act as you do. Now let’s say you’ve had an intention in the past that was “to make so and so’s life terrible”, and now, looking back, you don’t like that intention of yours. How can you live peacefully, knowing you once, impulsively, made that your intention and acted upon it?