By the way, you better not send Ki energy or direct your attention to your brain or your head. To gathering Ki energy up in the brain is to close all the capillaries in the other part of the body. I do not recommend it. But if you are those who are happy as long as your brain is powerful and never care your body, it's ok.
Anyway, what I tell you here is a better way to activate your brain.
As I said in the previous page, all those breathing or meditation techniques, such as Yoga, Zen meditation and Kiko (Tai Chi/Qigong/Chi Kung), start by practicing directing attention to Tanden.
When you focus your attention on your Tanden, Ki energy will be gathered in there, and a lot of Ki energy will be emitted.
Consequently, your brain will be in excellent condition.
Why? Because the blood circulation in the brain will be improved.
On the contrary, when you suffer from stress and panic attacks, Ki energy goes up to your head and make the blood circulation in your brain a traffic jam.
When you suffer from stress, all the blood is gathered up into your brain in order to deal with the problem. Once the blood is pushed up, the blood vessels in other part of the body will be tighten up to prevent the blood from coming down again. Meanwhile, more blood keep coming up, and more blood traffic jam will be caused in the brain.
With the blood traffic jam in the brain and your head whirling, you cannot think properly anymore, and be in a panic.
This is a state which is called "A rush of blood to the head"
After all, it is a contradiction. If you try to use brain and gather up the blood into your brain, the blood traffic jam will be caused, and nutrition and oxygen cannot be delivered smoothly. Consequently brain does not work properly.
So in order to make the trafic in your brain a superhighway and have a smooth blood circulation, you need to direct Ki energy to go down to your Tanden.
Once the capillaries in your small intestine open (or be activated), the activated capillaries in the small intestine will open the capillaries in whole your body, and it will lead to a good blood circulation in your heart, spleen, lungs, liver and kidney. Consequently, you will be in excellent condition and have a clear head.
But there is a limit depends on each person's capacity, mind you.