First off, you will need a basic understanding of energy and prana. See the lense I made on Prana here:
Also, be sure to check the examples of energy movements from the youtube clips located at the bottom of this article to get better acquainted with your energy.
Okay so step one. Find a wall.
Go on, I'll wait...
Okay all set?
What your going to do is pick a spot on that wall that you've chosen for your portal.
This will be your target area for the next week or two. This is where your portal is going to be. If you really want to make this work your going to need to apply some simple effort. This is not a parlour trick so it will require a little work, but its worth it trust me.
You'll want to set aside a good healthy 30 minutes a day on this, and dont skimp. You should practice this excercise in your room with the lights turned off or very low, (for your sake more so than anything when starting out its easier for you to see activity when it starts to perculate if you are in the dark)
Starting with your spot, which should generally be the size of your fist. (over time you will expand the size of the area your working on.)
Your going to point your hand out at this spot like a gun. (see above photograph) As you do this you'll want to begin to visualize a purple energy emanating out of your finger tip and into this spot on the wall. Move your fingers clockwise in a circular motion and picture a swirling of purple energy as you maintain your focus on the spot.
Your arm may get tired so your free to alternate a little between using your hand and projecting the intention from your chest. (think Donnie Darko) You can also rest your arm close to your body and continue the motion from the hip as your sitting. Just don't let your mind get too lazy or running off on tangents of internal distractions and thoughts. Intention and focus are key here.
Another tip is to try and feel the space behind the wall. Not the space on the other side of the wall, but the space of where this other dimension exists. A vastness if you will. Don't visualize what the place may look or be like too much, just get a feel for the spaciousness and continue with the swirling purple energy.
As you see fit your going to gradually work your way outwards until your portal is the radius of roughly a foot to two feet wide.
Thats it.. your intention and general mood is what will allow this portal to open up into a higher frequency of dimension than our own. This means your not going to get any dark entities or anomolies that are undesirable. You might be surprised by how pristine your experiences to come will be. Just don't let your imagination get carried away with unnecessary fears and enjoy the experience's.
Regiment - 30 minutes a day for one to two weeks. Don't be surprised if it starts to become active in the first couple of days. That doesn't mean its fully opened so keep at it. You never know what you may find but its sure to be interesting. Lots of activity is the norm.
Have fun!How to open a portal