Little Heidi lost her parents when she was young, but this did not affect her becoming an innocent, lively, and kind-hearted little girl. She loves life, nature, and helps others. She is young but has a unique personality. When she was five years old, she was sent to her grandfather's house in the mountains. She used her love to help her experienced and lonely grandfather become cheerful, and taught the shepherd Peter how to read. It was also with her help that Clara, a girl who could not walk, regained the courage to live, miraculously got rid of the wheelchair and regained the ability to walk. Even the blind old woman was filled with light again with her help.