Imagine you are eighty years old – assuming you’re not eighty already, that is; if you are, you’ll have to pick an older age – and then complete the sentences ‘I wish I’d spent more time on…’ and ‘I wish I’d spent less time on…’. This turns out to be a surprisingly effective way to achieve mortality awareness in short order. Things fall into place. It becomes far easier to follow Lauren Tillinghast’s advice – to figure out what, specifically, you might do in order to focus on life’s flavours, so as to improve your chances of reaching death having lived life as fully and as deeply as possible.
— Oliver Burkeman, The Antidote: Happiness for People Who Can’t Stand Positive Thinking