The paper presents a view on the issue of studying the driving forces of personality from the perspective of existential analysis. The student of V. Frankl A. Lange developed the concept of the will to meaning (Frankl’s monomotivational theory), highlighting four aspects existential relationship of personality, four fundamental motivations. Existential philosophers and followed by psychologists, while psychotherapists define these motivation as the main themes of human life, and their implementation is a condition for living true, deep life - existence. Langle allocates four aspects of existence: relationship with the realities of existence, i.e. the world, relations with dynamic, vital side of existence, i.e. life, relationship with ourselves and relations with the future. These aspects are defined as 1, 2, 3 and 4 existential fundamental motivations (FM). The article in the first part contains a description of the content of the four fundamental motivations A. Lange, and in the second - the results of own researches of the author that is dedicated to the approbation on the Russian sample test that measures the subjective experience of the integral quality of life as the sum of its constituent these four aspects.

Questionnaire «Test existential motivations» (TEM) (A. Lange, P. Eckhard) is developed in the framework of existential analysis as psycho-diagnostic instrument to provide psychological and consultative assistance, but it also can be used for research purposes for the study of subjective attitude to existential important aspects of being. According to the developers, «TEM» is addressed to space of human feelings and able to assess the completeness of his living each of the four fundamental motivations. The first FM embodies the intention to be in this world and (is committed) seeks to the acceptance of reality. Second FM is looking for opportunities to build relationships and living values.

Third FM is aimed at implementation of respectful treatment of ourselves and others, meeting and living ourselves as having value. Fourth FM is searching for the meaning of the situation, ways to make ourselves with all our capabilities in the world. The study of the fundamental motivations allows not only to closer to life-world of the person, to enter the space of his experience, but also meets the targets of psychotherapeutic practice.