respectable man with a large white beard covered his face with his hand in regret at the end of time in the hourglass. the concept

age aging background beard bearded calm clean closeup concept contemplation contrast countdown covered deep elderly eternity face focus grains hand hourglass introspection introspective journey large life man measurement meditation mindfulness minimalism mortality old passage patience philosophy quiet reflection reflective regret respectable sand seconds senior serene silence simplicity solitude symbolic thought thoughtful time timeless timer transience transient watchful white wisdom zen