The small child, fearful of losing and destroying the indispensable breast (real or introjected) suffers increased anxiety when it acquires teeth which could fulfil the destructive fantasy. Other aspects of maturation occurring about this time, such as walking and increased capacity for symbolization, tend however to reduce anxiety. The need to protect the breast (the mother) re-enforces the existing impulses toward such maturation; walking and talking enable the child to remove itself from the mother to an increasing degree. Also, new relationships with the outer world permit displacement of the destructiveness away from the mother.