Will is the most precious function inherent in man and yet it is the one that has been neglectedmost, both in family and school education. It is, therefore a matter of urgency to encourageand help the people to train and develop their will as a means to eliminate the lack of balance between the outer and the inner powers of men, introducing self-discipline, life purpose, protecting against their aggression of other uncontrolled drives. ; R. Assagioli, the founder of psychosynthesis in his book "The Act of Will" is introducing specific methods for development of the different aspects or phases and levels of the will and "volitional acts", explains psychological laws, which manages this process. ; When the individual will of man is cooperating harmoniously with the Will that governs the Universe, then that Will cooperates with him and puts at his disposal. In the Laws that rule the Cosmos man discovers the laws which should regulale his own actions. Thus the will, in becoming good, becomes at the same time strong, and wise, and this synthesis of the three, creates the complete will - the Perfect Will.