I don't think it's eloquent; it's pretty poorly written IMO; it is more cutesy than serious. Despite your assertions, those are subjective things. If you feel that your opinion is more valid than mine, feel free to explain why.
I read up to the cinna-stix line and my only thought was, "why am I wasting my time reading this?" It doesn't appear to be thoughtful and it puts focus on all the wrong things.
I realized at that moment that this post was not really about depression. It was about not getting what you want, not meeting your own expectations, and having to deal with reality.
YC is, for many people, a path to building a business. For others, it is a status symbol, a place where they try to make the next "Uber for X" as a way to spend time working with friends on something cool. That has nothing to do with YC and everything to do with the person's mentality. It is not specific to entrepreneurship and has everything to do with saying, "oh shit, this is actually hard to do."
Ultimately we are all alone with our thoughts, feelings, goals, and pain. Nobody else can sense or really know these things, but us. Getting kicked in the face teaches us this reality. There is some pain in beginning to understand reality. In this context, disappointment is healthy. It means you recognize the incongruence between your mental model of reality, and reality itself.
Depression sometimes has no connection to outcomes, and at other times it is a lingering rot from past outcomes. It is a trick that the mind plays, a tiring mental race through the muck of the past that leaves no energy to address the challenges of today. Depression is not burn-out, fatigue, nor disappointment. It is a slothy form of mental pain about an irreconcilable disparity between past expectations and the present. Irreconcilable means there's nothing I can do today to bridge the gap.
For me, the useful part of depression is the clarity it can offer about the future.
Do you note the difference in the way I am writing about the topic? I am not talking about pineapple pizza, nor cinna-stix.
It's not a childish topic and I don't want to be the audience to someone who discusses it in a childlike way.
You may now have the break that you requested I give to you.