There is a theory that we need or must investigate every trauma in our past history that if we leave things alone without making some sort of peace with the impact or some sort of understanding with it that it will haunt us. we will be forced to revisit things as the fallout wreaks havoc on our lives when we least expect it when we least can handle the situation or in the most destructive way.
Okay, some people as usual can and do abuse this too. They will indulge in some cases bludgeon everyone in their way with their childhood hurts and some people I have known will use their history as an excuse to be a jerk. Not cool and hurtful to anyone who doesn't have this intention. So balance...plunge investigate and grow from there, not dwell.
Example; you were raised by a dominant sadistic parent whose behavior was stunting and violent and as a small child undefended you were victimized.Yes you survive just barely but now as an adult you have years of abuse to sift through and you choose not to look into the impact or to deconstruct the defense mechanisms you needed then but not now, so what inevitably happens is the defenses are not deconstructed they keep working only now you are safe and out of harms way but parts of you are still "on" and working perilously creating new problems. So things happen to you to your system that create pressures or illness. Because as a rule defense systems are complex and effective and when no longer needed destructive. Yet our society doesn't support this kind of work as normal you run to the doctors or land in the hospital wondering why you have unexplained symptoms etc...Still in our society we hardly ever take a wholistic look at our "physical problems " as potentially sourcing from emotional, or psychic damage done decades earlier.
Ahhh but if we are blessed and there is some fortunate encouragement guidance we can begin immediately to deconstruct these complex systems. Yes,we can begin to dismantle the out of date defenses and release some of the pressures and reacquaint ourselves with parts of our being we may never have met before. We get to release the scary dark "secret" self which always 100% turn out to be not so scary dark or necessary to keep secret because we are now safe.
It is valuable work it should be embarked on with care and with strong help/ers who have integrity and are spiritually grounded. Not religious per se; just a good respect for the unknown.
So I encourage looking deeply into whatever ails us...not just addressing the body but encompassing the soul,heart and head too.
We deserve it, it is our divine right to be whole.