Connirae Andreas, Ph.D., developed Core Transformation in 1989 (Core Transformation: Reaching the Wellspring Within, Connirae Andreas and Tamara Andreas, Real People Press, 1994). Core Transformation is a multi-step procedure that draws upon several earlier NLP methods, including Parts, Six-Step-Reframe, and Timeline. It works on both the conscious and unconscious levels. 

Through Core Transformation a "Part" - an aspect of the psyche - that might have been experienced as a problem, impediment, or block is transformed into a gateway to something wonderful and healing, through evoking its Core State, a high-level existential or spiritual state of being, that represents the highest intention behind the way the Part initially shows itself.

This is Catherine's first Core Transformation session. At the end is a short followup interview, done 4 days later. You can view Session 2 on YouTube at https://youtu.be/ShIVgmzMi5o. 

For more on Core Transformation, see https://www.hypnosissilverspring.com/spiritual-life-coaching/ and https://www.barnesandnoble.com/w/core-transformation-connairae-andreas/1114270200.