I will relate four of the many little exercises that I sometimes do that I have found useful for jump-starting and developing insight into impermanence. They will demonstrate how we can be creative in exploring our reality precisely but hopefully they will not be thought of in some sort of dogmatic way. These objects and postures are not that important, but understanding impermanence directly is.
In one of these exercises, I sit quietly in a quiet place, close my eyes, put one hand on each knee, and concentrate just on my two index fingers. Basic dharma theory tells me that it is definitely not possible to perceive both fingers simultaneously, so with this knowledge I try to see in each instant which one of the two finger’s physical sensations are being perceived. Once the mind has speeded up a bit and yet become more stable, I try to perceive the arising and passing of each of these sensations. I may do this for half an hour or an hour, just staying with the sensations in my two fingers and perceiving when each sensation is and isn’t there. This might sound like a lot of work, and it definitely can be until the mind settles into it. It really requires the concentration of a fast sport like table tennis. This is such an engaging exercise and requires such precision that it is easy not to be lost in thought if I am really applying myself. I have found this to be a very useful practice for developing concentration and debunking the illusion of continuity. You can pick any two aspects of your experience for this exercise, be they physical or mental. I generally use my fingers only because through experimentation I have found that it is easy for me to perceive the sensations that make them up.
In another related exercise, I do the same sort of thing, sitting quietly in a quiet place with my eyes closed, but instead I concentrate on the sensations of the front and back of my head. With the knowledge that the illusion of a separate perceiver is partially supported by one impermanent sensation incorrectly seeming to perceive another impermanent sensation which it follows, such as the sensations in the back of the head incorrectly seeming to perceive the sensations of the 22
The Three Characteristics
front of the head which they follow, I try to be really clear about these sensations and when they are and aren’t there. I try to be clear if the sensations in the head are from the front or the back of the head in each instant, and then try to experience clearly the beginning and ending of each individual sensation.
