I was remembering about some things that were discussed in some psychology/philosophy classes in college plus some episodes in my life. All of them made me wonder about this kind of definition or undefinition of "essence" or "existence".
Seeing different theories, I saw that it's really difficult to find a consensus about it in general, and I think the best is to find a personal truth.
When I was about 14, I had a difficult time dealing with a "existential crisis". To solve my problem I started to think about what I should value in my life, what I should do and what I should think to make my time on Earth worthy. It was a little bit early, but I passed 2 years thinking about it hardly and I still think, as I am young, and every piece of experience, to me, must show me some purpose (big or small), but all the "crisis" is over as the solving of the problem fulfill gradually my needs that appear (and maturing helps very much). And conquering ideals (intrapersonal and interpersonal) has an important role in my life.
Not everyone needs to pass a time of "crisis" or depression in the search of self or purpose, but everyone has an idea of what's their existence and what's really essence to them.
So what defines this concepts to you? Some philosopher sums up your thoughts or you agree with one of them?