Regardless of our belief systems, human beings tend to internalize things overly much. We ruminate and ruminate and tend to gnaw at things over which we had no control. This is one of the symptoms of MY eating disorder and it has taken me years and years to realize that I can only control myself.
Even organ cleansings can be overdone and rendered harmful, rather than beneficial. We must use tools of physical health to help maintain our emotional health.
As for opening spiritual doors, I have only my own experience to offer. I must be very, very careful as to what doors I will open and which ones I will opt to keep closed. I never, ever invoke things beyond my ability to control - knowing that I can only control my Self, I've learned to recognize my limits and boundaries and have been relatively free of adverse or damaging spiritual influences, most of the time.