there was pressure on the feet, tingling on skin from wind, minor dull pain in the lower back. pulsing pressure in the lips, itchy tingling in the nostrils. There was slight damp warmth on the skin. there was pressure from the heartbeat, and the shirt against the chest when it beat. There was increasing warmth and pressure on the feet throughout the day.
There was bright colors and shapes, moving shadows cast from trees in the wind. Many colors and shades, graffiti on walls, bits of broken glass that shimmered bright light. Blue skies partially obscured by dark grey slow moving clouds.
There were tens of distinct sounds; cars, birds, wind, voices, low rumbling, water running, sounds of the arms brushing the shirt during the walking, the sound of air in inhale breath. Tasted saltiness in the mouth.
What is coming up as feelings, sensations after having done the exercise ?
Just to clarify, when you say "coming up as feelings", are you referring to direct experiential feelings, or emotional/thought-content feelings? I will do my best to answer both ways
1) Direct experiential feelings after doing the exercise. There was more perceiving of raw sensations (for example, shirt the body, pressure in the lower back) and less thought content, for a period of time. The sensations themselves did not feel different.
2) Emotional/thought-content. I felt like the distinction was apparent but subtle. For example, changing the text: "my arms" to: "the arms", made me think "Well these are the only arms that are being perceived. There are no perceived sensations from any arms other than these, so what's the difference?." I still struggle with this. I can agree that "I" am not necessary for the experiencing of arm sensations, but then why are only those sensations perceivable, and not the sensations of the arms of another person (for example)?
The change from "Tasting saltiness in my mouth" to "Tasting saltiness in the mouth" also made me wonder where (spatially) that sensation is found. For example, what it is about the actual sensation of taste makes me "know" that it's in "my" mouth? How does awareness differentiate these types of sensations? It clearly does, in my direct experience, taste and pressure are distinct and unique, but why, and how? Are they in different locations? Are they made of the same thing? These are some of the questions I found in thought.
Is a me or an I necessary for things to be done?
Sensations happen on their own. If "I" choose to focus on direct experience, I can mostly distinguish sensations from thought-content, and can sometimes notice when I slip out of directly experiencing things and into thought. So in that regard, "i" am not necessary for things to be done, and I am not necessary for sensing to take place. But "I" do feel necessary to remind myself to perceive direct experience.
Hopefully I approached your questions correctly.
Thanks for sharing the exercise, it spurred a lot of inquiry.