Introduction Living in the modern world, people face a number of difficulties they treat in accordance with their inner vision of the world, their understanding of life. Some people can cope with the problems themselves, others prefer to turn to professional assistance. Anyway, people use types of psychotherapies, either intentionally or not. Existential therapy is one of the psychological ways of treatment. Nevertheless, it is better to speak about existential therapy as about a philosophical approach that assists the practices of therapists. Experiencing a way of thinking, existential therapy does not provide a practitioner the model or particular techniques it creates a background, explores challenges, and paradoxes of human existence. Existential therapy is based on such notions as “mortality, meaning, freedom, responsibility, anxiety, and aloneness” (Corey, 2012, p. 139) refereed to human struggle at the moment. Paying attention to the entire idea of existential therapy, the exploring meaning and values of the issue will be considered referencing to the authenticity of the ideas, priorities, and values. The key counseling theoretical concepts of existential therapy, research support for this approach, clients which benefit from this therapy and the multicultural perspective is the focus of this paper. The main idea of the existential therapy is to show that human behavior cannot be grouped by any particular model as people are free in their actions, decisions, and choices, and therefore, they are responsible for what they do (Corey, 2012). The desire to help people understand that they make choices is a main aspect in existential therapy practice. This therapy encourages patients to understand what they can do, what their values and priorities are and how they behave referring to the previously discussed issues. Moreover, people have to be responsible for their actions (Coon, 2005). To be psychologically healthy from existential point of view means to overcome the life difficulties, and it is very important. People are to avoid disturbance based on wrong desire to meet values and expectations of other people. An effective psychological defense mechanism is a ground for self deception of these factors. People are not to be afraid of facing disturbance, vice versa, they are to be ready to overcome the problem with openness and full responsibility. Explanation of the Counseling Theoretical Concepts The key counseling theoretical concept of existential therapy is a basis for “an exploration of someone’s particular way of seeing life, the world and herself” (Spinelli, 2006, p. 312). Being aimed at assisting a person to understand what he or she needs, what seems important to him or her, and to make him or her feel in harmony with oneself, existential therapy may assist. This theory helps a person to “examine her own preconceptions and assumptions which stand in the way of her personal development” with the purpose to “rearrange his/her lifestyle in accordance with the priorities one has” (Spinelli, 2006, p. 312). People are to search for the truth of their lives through personal research and understanding. Rollo May and Victor Frankl founded the theory. They have identified six key co