>>40982920
There are no portals to no "4th dimension", that's not how it works. Our reality, or rather the band of reality we naturally engage in, is defined by a specific blend of "energies" and how they interact with each other, it creates a flow that's compatible with us, because we are also part of those energies.
To open a "portal" traditionally speaking, is to alter the blend of energies in a specific area so it matches the blend of a different band of reality. We're not talking about a literal hole that you step through to end up in a different realm. The idea of traveling to different realms is restricted to the mind vehicle only.
These energies have different names in every tradition, yin/yang qi, magnetic/electric fluids, pranic vayus...etc. These energies conform reality itself, so you don't need any type of "special abilities" to interact with them, those just grant you precision.
If for example you wanted to open a portal into the band of reality where spirits wander you'd need to saturate a location with the energy blend they thrive in. In this case being the negative side of the spectrum, a magnetic, heavy, stagnant area. You can do this physically by setting up a dark space and saturate it with yin/magnetic elements like stagnant water, dust, some blood or scented candles or incense. In this space you are the final ingredient or modulator. Once you step in and mimic the energies of the environment within yourself you're effectively traversing a portal in the traditional sense, and interaction with the other side of that portal becomes possible.