Creating realms is like creating thought forms, but self sustainable ones that other thought forms can live on. This type of magic is very difficult and can be used for many purposes including watching your creatures and the world grow or using it as a suspended energy reservoir.
Preparing to Create a Realm :
Before you create a realm, you must meditate or do some sort of ritual to align your energy and clear negative influences form your mind. Try to find a quiet distraction free zone. Load up on energy before creating a realm, be it by sleeping, eating, or taking stored energy out of storage. Do not use energy drinks, though, as this makes concentration harder. First you must get an idea of what your realm will look like. I find that it helps to draw out a basic landscape. Also, imagine the properties your realm will have. Will every Sunday bring a thunderstorm? Will volcanoes randomly explode during a certain moon phase(if you have a moon)? Get to know what exactly your realm will be and how it will be used and design it as such. You shouldn't have a vortex that feeds on the energies of surrounding creatures if you are going to try to draw energy from the realm. Next, visualize the creatures, what they do, how they look, what they eat, and what role they play. If you have herbivores, be sure to put some plants.
Creating A Realm :
To create a realm, you must start by going into a trance-like state. Not asleep, not awake. Close your eyes, then channel your energy into a shape that you visualize for the realm to look like. Create an entire world with your energy. This is going to tire you out but keep going until the world is created. Next, you must visualize the creatures and assign them there personalities, traits, etc. You will be tired from using a lot of your energy. You are done unless you want to add more things to the realm. Accessing your realm is like pushing out your consciousness to the realm. You should be easily able to do this seeing as not only have you been before, you created the realm. You will not appear there with a body, unless you form one for yourself out of energy. Also, please note that if you and another or a few others want to create a realm, you can all create a realm together and have more energy in it, making for a bigger, more complex realm.
Drawing Energy Form Your Realm :
Drawing energy from your realm is as simple as putting energy into it. Unless it's a joint realm, all the energy will be yours and if not, there will still be some of your energy so you can still draw it back within yourself, simply.
Hope you all enjoy. This is pretty basic and doesn't cover things as well as I can but if people like it, I might do another one that goes into more detail.