"I've never viewed my depression as an emotion. And not as something that has an end or a beginning. It just is. It has a shape and a weight. Not jagged or smooth. Not always big and not always small. Somewhere in between. Something hard and solid, like a rock. Sometimes it is as light as a pebble, able to be flicked off at the slightest notice. Sometimes it's ground into flecks of sand, barely noticeable and brushed away as quickly as it settles in. Other times it's a boulder with a crushing weight. One that feels immovable. Something you cannot get your arms around to move out of the way. And, at times, it is a mountain. An impossible obstacle in your path that you lack the energy to trek around, to climb over, or to tunnel beneath. And at the worst times, it may even beckon you to jump from it's summit."
Hall, Megan Kelley. "My Depression - A Rock and a Hard Place". Life Inside My Mind, edited by Jessica Burkhart, Simon Pulse, 2018, p. 177-178