What I remember being told by His Oneness of Lemuria who has been the Time Lord of Earth for 70,000 to 100,000 years or more

 He was telling me how Shambala was created when what he called I believe a "Time Wave" hit earth and when everyone not in another dimension was going to die. At that time there were technologically developed much further than we are now and had intergalactic Travel and also knew how to create or travel to existing Dimensional worlds where physical beings could live.

So, His Oneness "Time Lord of Earth then and now created Shambala then so that all humans on earth wouldn't die from this "Time Wave" that hit earth. 

I have no idea what caused this time wave or anything really else about it but that it would kill at the very least all human life on earth.

Did all life on earth die when it hit then about 100,000 years ago?

This is unknown to me at present. It could be that the time wave took away the mental faculties of only those beings who understood past, present and future they way we do as humans on earth which would make people incapable of surviving and feeding themselves to not function mentally within time and space anymore.

However, this is only a guess of what actually happened and I have no idea really what caused the time wave.

However, the most likely cause of a time wave from everything I have studied would be the creation or dissolution of a Galaxy.

So, like if a nearby Galaxy collided with another galaxy it might do something like this I'm thinking.

Why?

Because time and space ONLY exists in Galaxies scientifically speaking. It doesn't really exist between galaxies.

I actually experienced this one time soul traveling out beyond the Galaxy to see what was there.

It was such a terrifying experience for me then in my mid 20s that I stopped soul traveling out past the edge of the galaxy.

HOWEVER, what I actually learned is that we as humans are sort of like white or red corpuscles in the blood of the living being of the galaxy.

A galaxy I presently experience sort of the way you experience a Jellyfish on the open waters of a sea.

It's a living thing with consciousness but a different kind of consciousness than humans have in some ways (and yet they are still alive like us. They are a different type of lifeform than human beings.