A new approach based on the ideas of homology of fundamental regularities in self-organization in nature is proposed for psychology. By an exemplary model the article shows the natural correlation of energetical, informational and enthropical characteristics of human psychics. Basing on analysis of interrelation of common constituents of human activity, such as motives, attitudes and emotions, it is postulated that emotional reaction is but the reaction on ethropy changes in the processes of arising and satisfying the requirements. The proposed model gives a new light to the relation between vital and spiritual requirements of the personality.