As we move into the thirdmillennium, the field of mental health is in anexciting position to bring together diverseideas from a range of disciplines thatilluminate our understanding of humanexperience: neurobiology, developmentalpsychology, traumatology, and systems theory.The contributors emphasize the ways in which the social environment, including relationships ofchildhood, adulthood, and the treatment milieuchange aspects of the structure of the brain and ultimately alter the mind.