Gisela-Elisabeth Heinz, born in 1952, grew up in Hamburg, Germany. After completing her training as a dental technician, she studied Dentistry. In her own dental practice, she also worked as a naturopath. After her marriage to her late husband, she continued her practice in Upper Bavaria until 2018. Her interests include people, religions, and health, especially when approached from a spiritual point of view. She is a member of the Catholic Womens Association. She particularly enjoys reading a wide range of non-fiction books, outdoor sports, painting icons, gardening, and spending time in nature.
Co-author Peter Kutzki was born in 1950 in Starnberg am See, Bavaria, Germany, where he grew up, taking an early interest in science and philosophy. He completed training as a building services technician before marrying his wife Susanne in 1972 and welcoming his son Sven in 1973. In 1977, he launched his own business as a master craftsman. He enjoys drawing and reading philosophical writings, particularly those of Arthur Schopenhauer and Dr. Gustav Grossmann. In 1990, he made a career move to the industrial sector as a consultant for burner and heating technology. Following the death of his late wife, he began working on the manuscripts for this book