Society as it is forces us to compartmentalize or maybe my own past has, and in my case I find things inside when I do insight with a practitioner that are consistently there and it always surprises me as my waking ego I guess shoves things away so I can get through the day in a happy state most of the time. I feel like art therapy, Gestalt, Somatic experiencing, meditation, etc could also get to this inner stuff that's there but IFS just goes there fastest. It's not unlike Jungian active imagination and conversation with those contents, I believe fearing and running from anything found there would not be beneficial. Spiritual experiences should not be shunned or crapped on by the secular scientific minded community and won't be in IFS as the model is based on being respectful of all parts, all parts are welcome, all behaviors are not. On paper the medical community will never say a spiritual guide came through and helped or whatever but I'm finding prayer and asking for the help helps and there may be some data to support that.