Where there's a will, there's a well
Osmosis. It's the tendency of fluid, usually water, to pass through a semi-permeable membrane until there is an equal amount of fluid on both sides.
That's the scientific definition. The human definition is when a group of empathetic, caring individuals with ample water pass through their own barriers to make sure water is distributed to people on the other side of the world who will certainly die without it.
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