"To put it quite simply, I run. But if you'd like more detail than that..." "Of course we would." Cylus chuckles. "Well, you see, everything that has ever existed has a frequency. Planets, humans, even the void of space. Back when I learned of the multiverse and the infinite Earths, I learned that there is much more to it than that. When I learned to run between Earths, I learned that there is a dimensional barrier than can be broken with the right energy output and frequency. In order to break that barrier, I had to run fast enough and maintain the speed long enough to precisely match the frequency of the Earth I wished to travel to. With universal running, it was quite different." Barry says. "Imagine you have... Say a jar full of grapes. The skin of the grapes represent the dimensional barrier, while the grape itself is the dimension. Then say the jar represents that universe, and next to that jar is another jar, and another, until you find out that you have an infinite supply of jars." [quote]*That's a lot of jars and grapes.* Q comments[/quote] "Exactly. Now image that I'm a needle. The needle easily breaks through the skin of the grapes, little effort needed. As for the jar, it needs a little more help. You go to the lid of the jar and what do you know, there seem to be little holes scattered about. These holes are represented by these "rifts," just like the one I came through just minutes ago." Barry continues