abstract of hourglass against the backdrop of the cosmos. concept of elusive time, transience, and fleetingness of

sand elusive ephemeral time transience passage times essence fleetingness life background flying concept shard symbol passing hourglass temporal fleeting evanescent symbolic representation abstracted conceptually abstract representationally visually metaphorical metaphor symbolism fragility existence momentary moment ticking generative cosmos backdrop space universe celestial cosmic visual metaphysical enigmatic existential ethereal generated cosmos life