The central teaching of mysticism is that Everything is One, whereas from the side of rationalism the universe is Multiple. The essence of the mystical tradition is not a particular philosophical system, but the simple realization that the soul of any individual/existence is identified with the Absolute. A special feature of the mysticism is the elimination of discriminations, i.e. the One and the Multiple are identical.On the other hand, in rationalism the One and the Multiple differ substantially. Mysticism aims at the Emptiness of Zero, whereas rationalism aims at the identification with the Infinite of Everything. Based on the ontology resulting from modern physics the One is also the Multiple and the Multiplicity is also a Module, also the Void and the Everything are complementary aspects of a single and indivisible reality. This means that mysticism and rationalism are the two sides of a Cosmic Thought, which isexpressed through consciousness. We could say that this consciousness is the rhythm that coordinates any opposite.

The essays in this book are the notes from the international e – learning courses which organized by the international educational, research and cultural community ''Alexis karpouzos community'' from 20 March and 20 April 2016 on ''Introduction to Philosophy of contemporary cosmology: Transformation of thought and evolution of consciousness''. The courses are held online, the contributions were from London, Berlin, Dublin, New York, Chicago and Athens. The presentation of the courses and the coordination of the program was the Philosopher, and Spiritual teacher, Alexis Karpouzos. We would like to thank you for the great response about the courses.