This is a great book by Irvin D. Yalom, which I loved. It presents snippets from a therapy group and a psychobiography of Arthur Schopenhauer who is known as “ Philosopher of pessimisim”.

“And what is the most terrible thing about boredom? Why do we rush to dispel it? Because it is a distraction-free state which soon enough reveals underlying unpalatable truths about existence—our insignificance, our meaningless existence, our inexorable progression to deterioration and death.”