A story of a kidney bean and a girl...

This story was in the textbook when I was a second or third grade elementary student (I don't remember exactly).
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There was a girl who was seriously sick. She had to be inside her room always. Once upon a time, she pulled out window drapes. It was a very sunny day. She found a kidney bean stuck in her window. After several days later, a small green leaf came out of the kidney bean. As time passed, the leaf grew and covered her window. The story was ended with a good conclusion that the girl was recovered from her illness due to the hope of life that one kidney bean stuck in her window showed..
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Long time later, I just remembered this story. There are many people who were my kidney beans to give me the hope of life. Before I became a christian, I felt that I might be a thrown-out kidney bean, i.e., I am nothing (not now). ..........
Sometimes, I don't know how/why/for what I am here.
However, now I have a dream to be a kidney bean for someone wherever I go.