The following passages have been taken from Michio Kaku (1994) Hyperspace: A Scientific Odyssey Through Parallel Universes, Time Warps, and the Tenth Dimension, New York: Doubleday, pp.202, 209

“So far, the only theory that can claim to solve the mystery of what happened before the Big Bang is the ten-dimensional superstring theory. Scientists are just now (in 1994) conjecturing how the ten-dimensional universe split into a four- and a six-dimensional universe. What does our twin universe look like?

“At the beginning of time, the [ten-dimensional] universe was perfectly symmetrical. If anyone was around at that time, he could freely pass through any of the ten dimensions without [a] problem. At that time, gravity and the weak, the strong, and the electromagnetic forces were all unified by the superstring. All matter and all forces were part of the same string multiplet.

“However, this symmetry couldn’t last. The ten-dimensional universe, although perfectly symmetrical, was unstable… and in a false vacuum. Thus tunneling to a lower-energy state was inevitable. When tunneling finally occurred, a phase transition took place, and symmetry was lost. Because the universe began to split up into a four- and a six-dimensional universe, the universe was no longer symmetrical.”

The four-dimensional universe is the one in which we live, and because we can’t see the six-dimensional universe, physicists have assumed that the extra dimensions are curled up. But in 2005 a physicist named Lisa Randall, in a book titled Warped Passages: Unravelling the Mysteries of the Universe’s Hidden Dimensions, showed that hidden dimensions can be as large as the dimensions in the four-dimensional universe.

String theory has since been updated to include eleven dimensions, which means that the six-dimensional universe would have seven dimensions.

The four-dimensional universe corresponds to the physical universe in which we live, and the seven-dimensional universe corresponds to the metaphysical (beyond the physical) universe, or the astral realm, which we call heaven, that is superimposed upon the Earth. Most people are unable to perceive this realm with their five physical senses, but some gifted people, whom we call psychics or clairvoyants, who have a sixth sense, are able to perceive this realm and its inhabitants.

The next two posts describe the astral realm and its inhabitants.