In the present work we will get acquainted with different stages of the psyche development from the intrauterine period till the end of the man’s life cycle on earth. These periods are known in the following forms: the intrauterine stage, the oral-digestive stage, the digestive-anal stage, the urethral stage, the latency stage, the puberty (genital) stage, the maturity stage, the old age stage. It also includes the ego’s different development stages, according to the reality analysis paradigm. We will also discuss associative intelligence as a capacity to manage the correlation of the 3 levels, the quantum ego -universal-spatial, relational self and real self.