0 represents the portal between the material and immaterial realms. It implies both nothing and everything that does not have a material body. But each number, and all the archetypal energies they each represent, arise from the primordial pool of infinite potentials of the 0. Basically, 0 represents everything that -could- happen. Anything you can envision or imagine, no matter how unlikely or ridiculous. It represents thought before it has materialised - it is the number of the 'superposition state', where all outcomes are probable, but the outcome with the highest likelihood to happen will always arise from it. Anything that is beyond the null portal (or zero) - does not have a material body. So, for example, a -1 density being would be able to peer through the null portal into our world (this is called possession) - but it would not be able to materialise a body for itself, like we do. All matter comes into our three-dimensional realm through this null portal and goes back into immaterial states through it as well. When the Rule of Threes is applied, 1 is the beginning point of materialised thought, with 9 being its final iteration. After the pattern is complete, the object observed would have to dematerialise (pass away, die, transmute into a different state of being). The female womb would be a good example of where the null portal lies. Anything that can bring forth creation or life into a material form is a null portal. And anything that can dissipate matter into pure energy is also a null portal, like fire, or the Earth.