The psyche is distinctly more complicated and inaccessible than the body. It is, so to speak, the half of the world which comes into existence only when we become conscious of it. For that reason the psyche is not only a personal but a world problem, and the psychiatrist has to deal with an entire world.
Nowadays we can see as never before that the peril which threatens all of us comes not from nature, but from man, from the psyches of the individual and the mass. The psychic aberration of man is the danger. Everything depends upon whether or not our psyche functions properly. If certain persons lose their head nowadays, a hydrogen bomb will go off.