Changing emotion with emotion

In this video, Les Greenberg explains how one emotion can change, transform, and undo another emotion in Emotion-Focused Therapy (EFT).
This video is an excerpt taken from two training videos featuring Les, available to purchase at the following links:
www.cpcab.co.u...
www.cpcab.co.u...
This material includes an EFT therapy session, commentary about the session from Les Greenberg and 40 minutes of bonus content.