Two friends were walking through the desert. During the journey they had an argument, and the 1 boy slapped the shorter one in the face. The short boy was hurt, but without 2 anything, he wrote in the sand, "Today my best friend slapped 3 in the face."
They kept on walking 4 they found a pond, and they decided 5a bath there. But the shorter boy got stuck 6 the mud and started to sink. He cried, "Help! Help!" Luckily, he was pulled 7 by his friend. After that, he carved on a stone, "Today my best friend saved my life."
The taller boy asked him, "After I hurt you, you wrote it in the sand, but now you carved it on a stone. Why?"
The shorter boy replied, "When someone 8 you, you should write it in the sand from which wind can erase it 9. However, when someone does something 10 for you, you must carve it on the stone from which the wind can never erase it."
You have to learn to write your hurts in the sand and to carve your benefits in the stone.