Irvin D. Yalom said this quote
“ Encased in an elaborate illusion of unlimited power and progress, each of us subscribes, at least until one's midlife crisis, to the belief that existence consists of an eternal, upward spiral of achievement, dependent on will alone. This comforting illusion may be shattered by some urgent irreversible experience ... None more potently confronts us with finiteness and contingency than the imminence of our own death. ”