Imbri

“Did perpetual happiness in the Garden of Eden maybe get so boring that eating the apple was justified?”
― Chuck Palahniuk, Survivor

“Toska - noun /ˈtō-skə/ - Russian word roughly translated as sadness, melancholia, lugubriousness.

"No single word in English renders all the shades of toska. At its deepest and most painful, it is a sensation of great spiritual anguish, often without any specific cause. At less morbid levels it is a dull ache of the soul, a longing with nothing to long for, a sick pining, a vague restlessness, mental throes, yearning. In particular cases it may be the desire for somebody of something specific, nostalgia, love-sickness. At the lowest level it grades into ennui, boredom.”
― Vladimir Nabokov

“You live like this, sheltered, in a delicate world, and you believe you are living. Then you read a book… or you take a trip… and you discover that you are not living, that you are hibernating. The symptoms of hibernating are easily detectable: first, restlessness. The second symptom (when hibernating becomes dangerous and might degenerate into death): absence of pleasure. That is all. It appears like an innocuous illness. Monotony, boredom, death. Millions live like this (or die like this) without knowing it. They work in offices. They drive a car. They picnic with their families. They raise children. And then some shock treatment takes place, a person, a book, a song, and it awakens them and saves them from death. Some never awaken.”
― Anaïs Nin, The Diary of Anaïs Nin, Vol. 1: 1931-1934

“I sat there for three hours and did not feel the time or the boredom of our talk and its foolish disconnection. As long as I could hear his voice, I was quite lost, quite blind, quite outside my own self.”
― Anais Nin