That is a tremendous philosophy of life. There are many experiences, relationships, and situations in our lives that have been uprooted. Every one of those experiences has some fruit, which we can gather. Through the years I have counseled with numerous people in reference to the death of a loved one. Over and over we have talked about how we can reap the benefits of that person's life - how we can remember all of the good, inspiring, and happy results of that person's having lived.
Life has a way of cutting and hurting and sometimes scars are left.
However, let us remember that they are scars and not fresh wounds. If I had only done that. However, even as we look upon decisions we wish we had made, we gather the fruit. When driving your car, if you keep your eyes glued on the rearview mirror, you will see where you have been - but you likely will end up a wreck in some ditch. It is good to glance at the rearview mirror from time to time, but it is also good to keep your eyes on the road ahead.