In this paper I will attempt to describe the existential phenomenology of Jean-Paul Sartre and portray it into real life while analyzing its applications. I will first explain what existentialism is according to Sartre. The term itself depends on concrete individual existence, subjectivity, individual freedom, and choice. People are conscious subjects that can't be manipulated, or a have futures laid out for them, they are primarily conscious beings. The phenomena studied are those experienced in various acts of consciousness, or how each person sees/perceives the world before themselves. He believes that there are two kinds of existentialists: the Christian existentialist and the atheist are grouped together, and then French existentialists and himself. Sartre belongs to both as he is also very much so an atheist. The idea that existence precedes essence is the central factor in the atheistic view of people. Sartre introduced a great number of concepts in existentialism. Two of these concepts are the terms anguish and forlornness. They are simply defined, as anguish is feeling responsible for yourself as well as others and knowing that your actions affect others and forlornness is realizing that you are alone in your decisions. Sartre's view of anguish and forlornness addresses his view of life and humans. Sartre's views are based on the basic ideas of existentialism. The belief that existence precedes essence states that there is "no pre-existing concept of man."(Sartre) In the existentialist view, humans are what they make of themselves. They believe that people were indefinable at first; "he first appears, then defines himself." There are no set plans as to how a person must live. They must make their own decisions and move towards their futures with no help from the outside world. The main idea of existentialism is what Sartre simply stated as-I am responsible for myself and for everyone else.