I was just trying to think of a new energy raising technique and I figured this one out. It's a simple concept and may have already been found out but ill post it any ways,

I think of how small I am compared to the size of the world (which is pretty darn small).
Then picture the earth beneath my feet.
I envision roots from my feet spreading all over the Earth.
And then draw a massive amount of energy flowing through the roots when I inhale.
Then bring it up your back, to the top of your head, then down you face to your stomach chakra

It works pretty good for me, hope it does for you too.