Sixty 
This number is indicative of the passage of life. It may imply that a period, era, or life is coming to an end. It may also represent endurance and durability.
Hourglass
To dreams about an hourglasses or any time indicator reflects anxiety as a deadline or an important event approaches. The hourglass and its remarkable shape often represents a situation that's being turned upside down. This suggests a manipulation of truth.
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