Purpose can be built within your current job by identifying and focusing on tasks that energize you, rather than waiting for ideal circumstances or a career change.
Before retirement you count the days until Friday-after retirement you count the days since someone last needed you for something that couldn't wait and those two countdowns reveal everything about what work was actually giving you - Silicon Canals
Retirement reveals that work provided purpose and identity beyond income, with the loss of being needed creating unexpected emotional challenges.