In this book the author attempts to extend the concepts of soliton and excitation to the information soliton and nonlinear excitation based on the nonlinear kinetic equations proposed by him. He then discoverd that these novel concepts and equations can be related to so-called macroscopic quantum effects and macroscopic quantum tunneling phenomena. Additionaly he realized the results obtained can be useful to study life system from a bio-field angle. The outcome of the relevant studies is truly astonishing since it further helps us to explain many experimental phenomena and theoretical concepts which have never been clearly understood in somatic science. Intrinsically the findings of this book may help us comprehend the physical essence of qi. This study as an important aspect of the book may be beyond normal scope of science to investigate. However the author believes it is necessary to provide a scientific framework to study this issue because the concept of qi has been accompanying us unceasingly over thousands of years. The author hopes this book could help readers to further explore this mysterious field from a scientific angle.