This book contains reflections on the most important chemical elements - from sulfur to carbon and oxygen, and on to iron and silicon. These substances and their interactions are vividly illustrated. This reveals a new dimension of chemistry: the significance and meaning of the elements in nature. The main part of the book consists of twelve chapters that address the most important chemical elements found in nature. Here, the characteristic interactions for each element are elaborated upon and expanded into a comprehensive picture of their effects in nature. This leads to a nuanced understanding of fundamental natural and life processes from the perspective of chemical elements. Chemistry is one of the most important fields of natural knowledge, as nature appears everywhere in a material form that has arisen through chemical processes.