The ability to heal illnesses and relieve pain with light is a fascinating vision. Scientists agree that the 21st Century will be the century of photons, as the past 20th Century was that of the electrons. The laserneedles described in this compendium are characteristic for modern advancements. For the first time, they allow painless and highly effective acupuncture treatment according to traditional rules. Why this is possible is discussed in this book. Laserneedles are products from interdisciplinary and international research. Their effects open up new therapeutic dimensions beyond acupuncture whose medical-technological foundations are described here by authors from Austria, China, Germany and Switzerland.