The expression of emotional and rational aspects of constitutionalism, relying on the analysis of social interaction theories, theories of games, psychological and communicative theories of law, is revealed in the article. The dynamics of constitutionalism is explained as a multidimensional process of weighing and providing balance of interests in accordance with the requirements of due legal process. The main criterion for such decision is the guarantee of individual sovereign choice, based on the respect for the dignity and human rights.