Beyond human perception, in the life cycles of
universes, time is measured in a unit known as a kalpa.
How long does a kalpa last?
Imagine a block of stone, one cubic mile in size.
Now imagine a man approaching this enormous stone and rubbing it, once,
with a silk cloth.
Every 100 years, the man returns and rubs the stone once again.
At this rate, the stone will be polished down to a tiny, smooth pebble long before
a kalpa has elapsed.