You probably understand the fact that people are different. You have noticed that with the help of the Enneagram, we can understand these differences and work with them. Important and perhaps the most important element in this process is you. In order to understand the differences of other people, you need to first understand yourself and realize "what impression I leave with other people, my tendencies in behaviour, my motivation, etc". The Enneagram is a great tool to understand oneself and others, facilitate and make communication and cooperation more efficient.