They always ask what makes you so sad or what triggers it but what they don't understand is that it's not just one thing. It's like an earthquake- the world's plates are constantly moving and you don't realize it until the two plates grind and you suddenly feel it reach a solid 9.5 on the Richter scale, everything around you tumbling so quick you aren't sure whether it's safer to run to a doorway and attempt to dodge the crumbling walls or stand where you're at and pray that it all falls around you and you're left standing tall. And if you're lucky it's not an earthquake, it's more like you lose gravity but everyone else stays planted on the ground. You watch yourself lift slowly and drift away as the world goes on beneath you. You aren't able to grasp the reality of the situation until the world around you is no longer blue skies and green fields but a solid black oblivion. You're floating and holding your breath, just waiting for something to give and to drop you back into normality but instead you get deeper into the blanket of black and your only way out is the black hole you see ripping in the distance. It's a toss up, really. You could either feel everything or nothing at all- there's no sure way to know what depression you'll get but either way it's fatal.