Essentialism

After reading "Essentialism and Experience" and looking essentialism up I am still confused at its concept. To me it seems as if everything has properties that they must meet in order to have a purpose. This is so everything has a definition. It is then easier to describe things. Essentialism is a confusing topic to grasp however, to me it seems that essentialism is suppose to help makes sense of things. To give the topic order and definition so others can understand it. I still haven't grasped this concept but after researching it I have a little more understanding of it.