" Psychologists have a special word for uncomfortable life transitions: “liminality.”[3] It means the time between work roles, organizations, career paths, and relationship stages. The author Bruce Feiler wrote a popular book in 2020 on liminality called Life Is in the Transitions: Mastering Change at Any Age.[4] "

― Arthur C. Brooks , From Strength to Strength: Finding Success, Happiness, and Deep Purpose in the Second Half of Life