Let me begin by saying that most folks have some ability with shen and yi simply by virtue of being alive. Shen is emotional mind intent. Yi or I is intellectual mind intent. If an attacker is so angry or/and scared that you can feel their anger or fear then you are feeling their shen. If the attacker is very determined to get you to the extent that you can feel their determination then you are feeling their Yi / I.
Also, when you perceive that someone is staring at you and you look at them and see that they actually are staring at you then…
