Forming A Pocket Realm For Travel, How would this be done? Options

Hi, sorry if this is in the wrong section, I didn't know exactly which it would fall under. I've been thinking over the idea of creating a small pocket realm for astral, and if possible physical travel.
I don't know where I'd begin with this, or if it's even possible, so I'd be very thankful for the input from those more well versed in this. So far I've only done basic sigil work to try and begin its formation, but I haven't seen any results as of yet. Thanks in advance!

If you came back from that dream your body will always wake you up. yo go to the toilet or something.
Even if you could train to transfer memory from dream to reality like dream recal You would remember more if your completly lucid.

What about mummification is that some part of preserving the organs that give chackra energy and store it so that the person can use it in the other realms to link the body, ancient mystics talk about Immortality. Like the ancient egypt. to preserve your soul. amd spirit.

The Buddhist book ot the dead talk about attaining enlightenment right before your death.