First Published in 1999. This is Volume VII of a twenty-eight volume library of psychology on Psychoanalysis. This book is an essay on a neglected complex and its relation to Freudian Psychology. Thanks to Freud we know that many of our most important mental activities proceed entirely outside our consciousness in the hidden caverns of the mind that are power-houses of motivation. This essay looks at the hypothesis that all psychic phenomena are based on illusion and is less scientific than the hypothesis of the dual constitution of man.