What object or objects seen in Dutch still lifes conveys the theme of vanitas?

Question

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Dutch still lifes often include all of the objects listed (watches and other time-keeping devices, a half-eaten meal, and flowers in bloom) to convey the theme of vanitas, which emphasizes the transience of life and the futility of material possessions. The time-keeping devices remind the viewer of the passage of time and the inevitability of death, the half-eaten meal suggests the temporary nature of earthly pleasures and indulgences, and the flowers symbolize the fleeting beauty of life.

What Object or Objects Seen in Dutch Still Lifes Conveys