(English) The author went to medical school to learn more about how the human mind works, and became a neurologist to better explore the nervous system, which is at the source of the human mind. After settling down in Jeju Island to spend more time with her children, she has thrown herself into the skies, the seas, the hills, music, and books. She volunteered to become a civilian astronaut so she could travel across space, but failed to pass the physical exam and instead found solace in becoming an aviation medical examiner instead. Through this book, she hopes to expand the minds of the youth to better understand the history of medicine and broaden people's thinking as patients, caregivers, or future medical professionals.