I LOVE the writer Andrew Solomon. To be fair, you will find I say that about a lot of people. Ren, for instance. I LOVE Ren. And Maggie Smith.
Solomon is a brilliant, witty, insightful, and freaking prolific author, and one of his books that I adore is The Noonday Demon: An Atlas of Depression.
Perhaps my favorite quote of his, though many are in the running, is from a phenomenal TED Talk, linked below: “The opposite of depression is not happiness, but vitality.”