Go through a wormhole. It's theorized to lead to a parallel universe... although you probably won't survive being crushed into a singularity.
parallel universe is diffcult as youd have break the speed of light many times over & even the barriers of time to do it.
Start with meditation until you learn OOBE...but we're talking years of practice.
ohh i wish that would work out
There is no such thing.
Yes there is.
But traveling to them is near impossible, and even if it was, it would be lethal.
But we don't use 100% of our brain, and we can't "visit" them. They only exist in your mind.
there is a possibility, there's the one way ticket of no return, or you should try to look for wormholes around our planet.