Ok, Ki means Energy. Ki is all around us. Something like the force. Ok... In Order to Do a ki blast, ( yes you can do a REAL ki blast with the right time and concentration). Put your hands in front of you. Shape them like you were holding a baseball. Now, imagin that energy is going from your dan tien( the middle of your waist) into your arms, in your in your hands, then out your the middle of your palm in to the center of the hand formation you made. Keep pushing energy into it. It will take a while to do this. You should feel heat. If you do, its close. You may not see a real ki blast for a long time. Maybe up to 6 months. Keep practicing and you may see it.