Basically the world we live in has dimensions, not physically proved however scientifically evidenced that our world contain dimension, by which we are separate from the key layers which are on other dimension of the world, let’s take a fictional example to make you understand, like within the film Harry potter, they move towards wall however they don’t collapses with it however they cross via it, that means at the very time of collapsing they modify their dimension making them potential to walk inside the terrain and go to another dimension.

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