Rocks erode with the weather over a long period of time, mainly by water and wind. Sediments are transported downstream and continue to break apart into smaller pieces until they become fine grains of sand.
An elemental fact on how they evolve gained my focus walking many mornings on my photoshoots. Meditation and inspirational stories later, I discovered the below story, which has stayed with me. Whisky&Water = Story&Life
Sand and Stone: A story tells that two friends were walking through the desert. At some point of the journey, they had an argument and one friend slapped the other one in the face. The one who got slapped was hurt, but without saying anything, wrote in the sand… “TODAY MY BEST FRIEND SLAPPED ME IN THE FACE.” They kept on walking until they found an oasis where they decided to take a bath. The one who had been slapped got stuck in die mire and started drowning. But the friend saved him. After the friend recovered from the near drowning, he wrote on a stone…. “TODAY MY BEST FRIEND SAVED MY LIFE.” The friend who had slapped and saved his best friend asked him, “After I hurt you, you wrote in the sand, and now, you write on a stone, why?” The other friend replied… “When someone hurts us, we should write it down in sand where winds of forgiveness can erase it away. But, when someone does something good for us, we must engrave it in stone where no wind can ever erase it.”
