" that the human brain expects permanence. The cup is where you put it. The car is where you parked it (if it hasn’t been towed away). The wine is still in the refrigerator where you left it. It’s only people, the most complex, important, influential, life-changing elements of our lives, who are there and then are shockingly not-there. And it’s surprisingly hard to get one’s brain around that. So "

― Nick Alexander , The Bottle of Tears