Virginia Satir was one of the pioneers of family therapy. She was also a major source of NLP patterns and distinctions.
In her longer afternoon talk, Virginia gave an extensive and comprehensive overview of her ideas about human beings and personal change.
These include the difference between the right/wrong model — "shoulds" and "oughts" — and honoring what is real and actual, and the difference between assigned roles and individual identity.
The typical up/down, dominance/submission interactions that are so common in troubled relationships are illustrated with tableaus and role-plays to demonstrate how to grow out of them into authentic being.
Virginia goes on to expand on her "seed model" alternative to the static right/wrong model.
Via Mhd.Shadi Khudr, JLAndrianarisoa