Just noticed...

The act of visualizing gives the shield energy. I usually visualize the source of that energy whether it be myself, the ground or the sky, and see it give energy to the shield.

Hi, I practise Reiki and use energy chanelled from the Universe. Believe me, you can feel the energy and once you do, shielding etc will fall into place. I'm not saying you have to practise Reiki to feel energy but it's the method I use for healing and the same energy I use for casting spells.

Does ground and centering help?

Grounding circulates and renews energy.
Centering balances internal energy.

Yes, these two practices can help with energy manipulation greatly. When you're facing burnt out, unbalanced energy, controling the flow at that allowing a flow can be a bit more difficult to say the least.

I did telekinesis the other day and after my practice i woke up tomorrow and felt like i was experiancing an out of body feeling.

"Telekinesis" does not typically cause an OBE.

Isnt telekinesis the same as energy manipulation,in which i direct my energy into the object and try to make it move with my energy?

Or maybe it was something like a mood swing.

I just look around the area I want to shield, close my eyes and imagine the shield in that area. Then I use a chant pertaining to what I want it to do.

myself, i've never felt energy, but i see it. what i do is during meditation, after i cleanse myself with white light, i visualize it centering in my stomach area, spinning fast and omitting rays of light that cling to my body as a shield of light throughout the day. if i was was to take a week off from doing this, my cleansing and shielding will take longer than if i kept it up daily. but i'm the type of person where i miss one day of a routine and i can't get back into it... should go meditate now *walks away*