Memento Mori
Remember that you die — and live each breath as if it might be the last, until at any moment you are prepared, complete, and without fear.
Every tradition that made people serious kept some version of this. Meditate on death, say the Stoics. Teach us to number our days, that we may gain a heart of wisdom. Mindfulness of death, in Buddhist practice, which is said to produce presence, diligence, urgency, and a clear sense of what should be taken up and what set down. The way of the warrior is, morning after morning, the practice of death. Remember often death. The remarkable thing is not that one lineage says it but that they all do, and for the same reason.
The reason is that mortality is the only thing that makes anything scarce. Nothing has weight in an endless life. It is finitude that turns an hour into a choice, and remembering the finitude is what restores the weight that ordinary days quietly drain away (The Veil of Finitude and Forgetting, Spending Attention, Spending Time · Units of Time).
The chapter turns it into an instrument, which is what lifts it out of melancholy. Three questions, at three scales. If this were my last week, what would I do and who would I become? If this were my last day? If this were my last breath? Asked honestly when you cannot tell what to do, they tend to answer the question, because almost everything that obscures the answer is a calculation about a future that has just been removed (The compass question, Discernment, The Daily Reckoning).
Expect the first asking to open a chasm — between what you are doing and what you would be doing, between who you are and who you would be. That gap is the point, and the counsel about it is patient rather than dramatic: over time, with practice, bring the two into harmony, so that at any moment you are prepared to die, complete, and without fear (The Life of a Commitment, Complete and Declare, Sacrifice for Something Better).
And then the working reason, said flatly: one who fears death cannot act or be properly when the moment of truth arrives. This is not a counsel of resignation. It is preparation for action (Fear Not Death, Composure Under Threat, Courage). The chapter ends with one word on its own line: Love.
Also called: remember death · live as if it might be your last
Stands on: Dying · Time · Courage · Love
Opens onto: Fear Not Death · Fear · Sacrifice for Something Better · The Veil of Finitude and Forgetting · The Daily Reckoning · Spending Time · Units of Time · Remembrance · Generational Time · Composure Under Threat · The Way Out · Complete and Declare
In play: the daily practice — and whenever a person genuinely cannot tell what they should do
Sources: LIØNSBERG Wiki Books/The Wisdom of the Way/15. Memento Mori.md (unmarked; the book's longest chapter, five traditions carried) · the same book's chapter 16 · lionsberg.wiki: The Wisdom of the Way
Open: The chapter is built almost entirely from carried sayings and adds the three questions as its own. · It says nothing about the person for whom death is not an abstraction — the grieving, the ill, the one who has just lost someone — and the practice reads very differently there; Dying carries what little the canon holds on accompanying a death, and names itself a gap.