Cho Ku Rei and empowering medicine
Taken From ReikiLiving :
"The first of the Usui symbols is commonly known as The Power Symbol. Pronounced in Japanese as Cho- Koo- Ray, it is learned in Reiki levels 1 & 2. It means Put all the power of the Universe here and is most often drawn by the practitioner’s dominant hand on each of his/her palms before sending treatment. Additionally, it is often drawn on the recipient’s Crown Chakra before a session thoroughly begins. It can be placed wherever the practitioner feels whether on him/herself or the recipient.
Drawing it, imagining it or chanting it three times can invoke Cho Ku Rei."
Cho Rei also used to empowering medicine :
1. Put the medicine in left hand
2. Draw Cho Ku Rei symbol and wait for a while
3. Send the energy to medicine
4. Medicine ready to eat/drink 
Sample video to do that, click here.
