Читать книгу The Element Encyclopedia of Secret Signs and Symbols: The Ultimate A–Z Guide from Alchemy to the Zodiac - Adele Nozedar - Страница 269

The function of the hourglass is to mark the passing of time, as sand trickles through the narrow waist in the middle of the transparent glass container that is the same shape as a figure of eight. Therefore, the hourglass is often used as a motif to show the inevitability of death.

However, the shape of the hourglass, as well as being a visual symbol and a word used to describe the figure of a shapely woman, is a lemniscate, or infinity sign. This indicates eternity. That the hourglass can be turned upside down to start the cycle all over again makes it an optimistic symbol of rebirth.