Once upon a time, there were two brother's who lived at forest edge. Older brother was arrogant and was always unkind and rude to his younger brother. Where as younger brother was kind and even if older brother disrespected him, treated him bad, took his things and food, he never did anything wrong to him. He always cared for his older brother. Both brothers used to go into forest in search of firewood to sell in market. One day, older brother alone went deep into forest, as he walked through forest, he chopped off branch of every tree until he came upon a special tree. As he was about to cut branch of tree with axe, a voice came from tree and asked him to stop. Tree said, "Oh, kind sir, please spare my branches. I am a magical tree. if you spare me, I will provide you with golden apples."He agreed. Tree dropped some golden apples for him but he was disappointed and wanted to have many more apples. Overcome by greed, he threatened magical tree that if it didn't provide him with more apples then he will cut the entire tree. This time, instead of giving more apples, tree showered him with hundred of tiny needles. He fell to ground, crying in pain as sun began to set. In meantime, younger brother got worried when his older brother didn't return in evening. He went into forest to search for his older brother. He searched for him until he found him near trunk of tree, lying in pain with hundred of needles stuck on his body. Seeing this, younger brother rushed to him and started to painstakingly remove each needle with love. Once needles were out, older brother thanked his younger brother for his help and realized that how badly he treated his younger brother. He instantly apologized to his younger brother and promised that he would never mistreat him. He also apologized to magical tree for his behavior. Seeing this change of heart in older brother, magical tree gifted them with all the golden apples they could need. 
It's important to be kind, as it will always be rewarded. 