What is time? Scientists know how to measure time, but they have no idea what it actually is. This books explains the deep mystery of time. It clarifies all of the enigmas concerning the tensed and tenseless theories of time, and addresses McTaggart's famous claim that time is "unreal".Hegel's classification of "good" and "bad" infinity is analyzed, and a new mathematics of infinity is introduced, based on the concept of the "finite infinite" as opposed to the "infinite infinite".The correct answer is given to Zeno's notoriously problematic paradox of the race between Achilles and the tortoise.The "Hotel Infinity" model of the Big Bang is analyzed and shown to be far superior to conventional Big Bang theory.The "Sensorium" and "Cognitorium" are discussed, and multiple accounts of consciousness, including dream consciousness and Jungian archetypes.The issue of "private language" is analyzed, and used as a proof for the non-existence of the Abrahamic God.