Anxiety in adult life originates in the early stages of our development. It re-surfaces when long-term personal and/or organisational structures begin to disintegrate into unfamiliar forms, and the painstakingly constructed defence systems of the personality appear to be in danger of being swept away. The root cause of this feeling is not difficult to explain. All that the human organism can do entirely on its own, for the first year or so of its life, is to breathe. For the fulfilment of all other needs, it depends utterly on the goodwill of others. Although the situation improves gradually as we learn how to act for ourselves, physical development is slow, and it is not until puberty, when mental and motor skills are sufficiently developed, that our basic individual needs can begin to be satisfied without outside help. For a very long period - fifteen years, at the very least - the over-riding need of the immature human organism is to be loved. Any withdrawal of affection implies that none of its other needs is going to be met. Every child will instinctively sense this threat to its survival; it forms the foundation on which adult feelings of panic and insecurity will be built. If it can't get itself loved unconditionally it will spend most of its energy building up a personality structure strong enough to permanently protect those bits of itself that it fears will be perceived as being unacceptable.