Depending on a type of energy in personal characteristics, 9 Enneagram types are divided into three triads. 5, 6, 7 fall into Head Triad, 2, 3, 4 into Heart Triad, and 8, 9, 1 into Gut Triad. Every human being is born showing a close relation with one of these nine Enneatypes, and each type further expands into three subtypes. So-called 27 Subtypes, categorizes each Enneatype into three different subgroups based on basic human instinct he/she withholds. Subtypes embody the very nature of human instinct, as they coexist in all 9 Enneatypes. Instinct is a survival strategy at a subconscious level that helps a human being survive in this world as a social animal. Three “Subtype” instincts are represented in our daily lives in subconscious ways. Within each of the nine Ennea types, two of three subtypes are consistent with its passion characteristics, while another one is not. We call this against-the-passion subtype “countertype.” 27 Subtypes of Enneagram helps one deeply reflect on him/herself by throwing a question: “who is my true self?” Hence we are able to find our own obsessions through the scope of 27 Subtypes, find our cause, and overcome our obsessive compulsions. In process, one finds his or her gifted talent and learns how to cope with the environment as he or she builds a unique strategy based on these gifts. 27 Subtypes of Enneagram is a self-practice that enables one achieve whole life by offering journey to finding true self.