" His maternal deprivation had caused what John Bowlby, a famous British psychiatrist, called an “attachment disorder.” Maternal attachment is more important than anything else to a baby—even more important than food. A baby will give up anything to have it. Without it, the child is anxious and unable to explore or deal with the world in any normal way. And attachment disorder doesn’t just affect the relationship with the mother; it affects all social, emotional, and cognitive development. If the child doesn’t experience attachment, that child can’t move forward to step two—trusting and emotionally attaching to others and, eventually, sexually attaching to others. In other words, you can’t grow emotionally if you didn’t have infant attachment. "

― Catherine Gildiner , Good Morning, Monster: A Therapist Shares Five Heroic Stories of Emotional Recovery