Essentialism

I read through this article several times trying to comprehend its meaning, first I read it with the computer and other such distractions around, then I realized I did not remember any of the words I had just read but rather let it slip right away. Some words i tried to analyze with close reading but I couldn't really grasp the over meaning of the article. What I drew from the reading is that essentialism is "identity, essence and subjectivity" it is also by definition a philosophical theory ascribing ultimate reality to essence embodied in a thing perceptible to the senses. I am looking forward to hearing what others have to say about this article since i really struggled getting through this task.