This book shows that, to understand the origins of the universe, there is no need to look at deep space or look deep into matter, but, rather, to look at what is hidden under our feet, at our Earth. It notes that various regularities are hidden in the seismicity of the Earth, which can be "seen" by operating with new seismic parameters. These parameters are calculated based on earthquake data recorded by global seismological networks. This approach makes it possible to build a theory of entropy seismology, which can be applied in solving the problem of earthquake prediction, constructing dynamic maps of seismic hazard, and controlling the occurrence of undesirable seismicity as a result of human activity. The book also develops a seismic formalism, which allows one to look at modern problems of physics and cosmology from the unusual positions of entropy seismology.