I learned from you that touching your own body in the kata means you are actually hitting your attacker. I do a kata called Chinto (not the same as Gankaku) in which your left arm is raised to the side in a biceps pose and you touch your inner forearm (lung 6 or pericardium 4) with the finger tips of your right hand, then move your right hand with wrist bent in the opposite direction. Then you slap both shoulders, left then right, before executing a mountain punch to the side. Pull both arms back and do a high x-block then slap the backs of both hands on the inner thighs before executing a u-punch.
My teacher has said you are reminding yourself about where these pressure points are. I don't buy this explanation. Do you have any ideas? If the descriptions are not adequate, I can send a short video. Thanks in advance for any suggestions you might have.