Edit: This turned out to be a mini memoir, please skip if irrelevant to you

This is veering off-topic so apologies. I tried to match my experience with the feelings described by the author in the article, but yes, you're right, depression can be much more than that. Now I say can because I visualise depression as a spiral, not necessarily consistent throughout, but definitely like a bottomless well. The feeling of being a "pressure cooker" is a level of depression, but I'm tempted to say that it's not the worst. The worst, and the most dangerous, I felt was self-transparency, where I lost all sense of what makes "me" and the world feels like a ghost and passes straight through. It was much more than numbness, it was emptiness that felt more white than black, yet I remember tears that won't stop welling, of shaking and shivering and lots of switching offs, usually to actual sleep. This was different to melancholy though, this was really the point when you don't consider but believe that you're absolutely and weightlessly nothing - and consequently there is no difference in physical life and death. There's no more anger nor confusion, just whispers of what's the point. I know that all this sounds poetic (and I haven't covered all that precedes this point such as guilt/imposter/self-ripping) but damn it wasn't beautiful. Suicide might be an idea my mind fiercely puts a gate around, but the desire for death creeps in anyway: there were a few incidents when my foot slowed down when crossing the road, when I walked alone at midnight ... no it wasn't nice.

I'm glad no harm came to me. It turned out that the worst was actually the beginning of my recovery; I managed to hold on for a little longer (thank you to my few friends and family) and gradually the world trickled in. I became fascinated by the sky though it hurt my eyes, but it had so many colours with clouds of different shapes, and a depth that showed that there is much much more beyond. Then the sounds came in. And looking at small children, I realised that I had become one too because we spoke the same language. It was very strange, but that was when I first felt happy! And proud and glad that I had hold on after all.

Falling into the spiral is like your world collapsing into a pile of cards. But let it collapse, and be patient: you will have the chance to rebuild, except with a cleaner slate and more thought for the now and the future. Just need to hold on for a little longer, and sleep, lots of sleep.

Thank you, that was very beautifully put!

Have you seen "Inside out"? In that movie, joy and sadness are depicted as two characters cooperating whereas depression sets in when these two are absent and the infrastructure starts to shut down and crumble...

I feel that "Inside Out" is more of a rites of passage story, where the falling of those childhood 'infrastructures' is due to change, especially disruptive ones (just the denial of "sadness" felt a little too simplistic).

But I think with depression, there is less 'logic'; it's much harder for you to follow what the hell is going on. Kinda like a big mess of yarn that's so knotted up you really wanna grab a pair of scissors and cut them up, and throw them in the fire for good measure. It's destructive, and that's why depression is awfully dangerous. Now you might think that the process itself will lead to that blank slate - I gave a pile of cards metaphor earlier - enabling a chance to build better and even turn the experience to some sort of character enrichment. But it's not that glamorous; not everyone can hold on for that long. I do count myself extremely lucky.

But one thing the film definitely got right was the concept of support. Riley eventually got through by allowing herself to break down and tell her parents everything, acknowledging the bits that she consciously feels to be weak, pathetic et cetra, like sadness. And that's really important for someone who's depressed; you will not be able to help yourself. Contrary to your belief, you need outside support to help you battle those demons and tell you that A is A and not a+b+c-d. It might be difficult to find good support, and initially I didn't either, but I knew my mom to be fundamentally caring about me and by approaching her, we slowly went down the road to detangle the mess. I'm not gonna kid, it was rocky as we didn't have a very good relationship, but we got there eventually. And learnt a bit more about humanity.