Definition
Gratitude is the disposition to notice and value what one has been given — health, relationships, time, the simple fact of existence — rather than to dwell on what is missing. In Stoic practice it functions as an active discipline of attention, not a passing mood.
The Stoics linked gratitude to the recognition that nothing one possesses is owned outright. Things are on loan from fortune, and seeing them this way turns each one from an assumed entitlement into a noticed gift.
Why it matters
How it works
A common Stoic technique is negative visualization: briefly imagining the loss of something one values, then returning to the present where it still exists. The contrast renews appreciation that habituation had dulled.
Gratitude also pairs with the view that externals are impermanent. Because what is enjoyed today may be gone tomorrow, the rational response is to value it now, fully, without taking it for granted.