That is not the intent of the session. However, large numbers of clients will have incredible improvements of profound emotional impairments. This may be related to removing the tension in the muscle that is actually storing a portion of the emotional trauma. It is not a religious or spiritual technique. Some clients do consider it a spiritual healing, but that is a function of their using the physical and emotional flux state as a private opportunity to grow along their own spiritual path.
Positive ones excite energetic movement and negative ones block or reflect it.
Then when a positive move is done, a positive move is done in between the set of blockers. The energy then reverberates between the walls until all unnatural tension and is gone. There are different moves for each area of the body. The actual NST move is a study in delicacy. The skin slack is gently tractioned off the crest of the muscle.