Psi ball- cup your hands like you would be holding a ball. Visualize energy coming from your tan tien and moving up through your stomach and into both arms. Visualize it moving from your arms into your hands. Then it flowing out into the center of your cupped hands. Picture it swirling and condensing.Keep adding energy to it. You should start to feel a sort of magnetic push/pull, you may also get a tingly feeling sort. To make it stronger and denser when visualizing it picture it get smaller and then add another layer then that compacting over it. Keep adding layers then condensing them. Make it like an onion. Do this till you feel it is as heavy as you want it to be.NOTE: psi balls can be used to attack someone with or used to heal someone.