“Dripping water hollows out stone, not through force but through persistence.” - Ovid
Water is really under appreciated. Not simply because all life requires water, but because water is one of the most powerful symbols to ever exist and yet it rarely gets any credit. Perhaps that's actually part of its power.
Water can easily navigate around obstacles, over, under, around or through them. Little to nothing is impervious to water.
If water wants in, it will get in, despite your best attempts to keep it out. It will change forms from gas to ice and play the slow game if it must, but you can count on it showing up time after time. It will be patient and it will slowly carve large unmovable rocks, and cut them down to size if that's what it desires. Just as it did in that big canyon in Arizona. Just as it has done throughout the world taking on the form of a glacier.
As Ovid said, "Guttaa cavat Lapidem" - dripping water carves a stone. Water is very persistent.
A puddle of water, splish splash. A hail storm. An iceberg. A cloud. Water is a shape shifter. Add a few basic elements to it, and it will change color and take on new properties. Water is the ultimate chameleon.
But most importantly, water cleanses. It washes away stains.
One way or another.
There is a lot we can learn from water.