Learning to Understand the Language of Nature is a comprehensive guide that explores the research and application of barcode combinations and geometric shapes. Based on the work of Erich Körbler, it explains how these elements can be used as antennas on the body to influence the life energy flows in the meridian system of humans and animals. The guide provides a detailed introduction to the use of the Universal Rod, a testing instrument that allows for the assessment of the compatibility of food, textiles, and other materials. Additionally, it covers biophysical tests and the optimization of personal environments. Complemented by contributions from Dr. Franz Moser, the work offers valuable insights into the scientific theory of New Homeopathy and presents the results of extensive research.