Finding words for the weight of a bad day is something I scroll through Tumblr for sometimes. Not for wallowing, but to feel seen. There's one from 'The Book Thief' that gets me: 'I am haunted by humans.' It's so simple but it twists the knife. It's not about ghosts, it's about how people are the source of both our deepest pain and our only comfort. That contradiction feels true on days when the world is too much.
Then there's a line from Sylvia Plath's journals I think about a lot: 'I have the choice of being constantly active and happy or introspectively passive and sad. Or I can go mad by ricocheting in between.' The relatability is in the exhaustion of the ricochet. It's not poetic despair; it's the bone-deep fatigue of trying to hold it together and failing. Those quotes don't fix anything, but they give the grey feeling a shape, which is its own weird comfort.
Actually, a more recent one I saved is from 'A Little Life': 'Things get broken, and sometimes they get repaired, and in most cases, you realize that no matter what gets damaged, life rearranges itself to compensate for your loss, at times wonderfully.' The sadness is in the first part, but the relatability for tough days is in that grim, practical hope. It's not sunshine, it's just... rearrangement.