The Universe (capitalized to signify the greater Multiverse, small case for our universe) can be imagined being created as the result of a just prior to creation of our universe event, an implosion. The resulting reaction, the Big Bang, has things moving outward. Based on observation, Alan Guth, a physicist at the Massachusetts Institute of Technology proposes a parallel universe theory called the Inflationary Theory of Cosmology. Professor Guth envisions that when the universe began, rather than things being pulled together by gravity, things were pulled apart by a kind of anti-gravity. As this force weakened, this reverse gravity that created a “false vacuum” (causing constant expansion) collapsed just before the Big Bang. Decay formed the particles which began our universe—the Universe is much bigger and our little universe is a bubble created by this collapse. Innumerable bubbles form the Universe, each a little universe.
Could these universes all have the same law of physics and the same properties because of their common origin, or are their numbers so vast, every possible combination of principles? Or both? This allows for parallel universes with the possibility a person can exist at the same time in one or more places. Options are virtually limitless in a Multiverse.
The ability to move from one universe to another is done through thought transference. To change location (where you are in the Universe) you merely need to change your thought pattern or frequencies.