This book studies strategic goals of advanced extra-terrestrial civilisations, and the implications they have for planet Earth. The theoretical framework is based on logical arguments and statistical considerations. The book explains various empirically and statistically confirmed phenomena for which science has currently no convincing explanation. These phenomena include the existence of religious beliefs, the existence of dreams, the existence of the mental disorder schizophrenia, the statistical evidence for some parapsychological phenomena, and the fact that the human brain capacity decreased since the human civilisation emerged from hunter-gatherers.The theory can be outlined as follows. A technologically highly advanced civilisation settled Earth millions of years ago and has installed its computational infrastructure under the surface of the Earth. The members of the civilisation have uploaded their minds to computers and live in a virtual reality. Their technological infrastructure includes facilities for detecting and manipulating electromagnetic signals at arbitrary position on Earth. They used intelligent programs for directing evolution on Earth, and are now in the process of developing methods for rewiring the human brain. This is done with the goal of controlling human thought processes and to prevent humans from becoming a threat for other civilisations.The first chapter proves the hypothesis with statistical and logical arguments. Putative implications for physics are derived, and creativity and mental illnesses are re-examined in the context of the developed theory. The book then provides a reinterpretation of human history. The last chapter illustrates the developed theory with some channelling reports.