RM, accolade? I'm just stating where I'm coming from. Nothing in what you have posted has given me any reason to believe you are a professional in the field of Chinese medicine. You haven't said so, at least I'm sharing how I know what I know.
Again, just because the Shenming is easily observed in the eyes does not mean that is the only place Shen is observed. You state "if you want to take the pulse, one goes to the radial artery." Again, this is an easy place to feel the pulse, but to state that it is the only place the pulse can be taken is to miss something fundamental about the thinking that underlies Chinese medicine. I often take a carotid pulse as well for comparison.
What I object to is your method of exluding information. I didn't jump in here to show everyone what great knowledge of Shen I have. However, I do have some specialized knowledge, with a first class pedigree (I say this not to impress, it just happens to be), particularly in the field of Chinese physical culture. You chose to state what the Chinese perspective on observation of the Shen is in such a way that any alternative would be personally agressive.
(Believe it or not, this really is an attempt to be on topic)
Reductionist thinking that says "the acceptance of Thesis A excludes the validity of Thesis B" is very Western thinking. Science, much like the Christian philosophy at its roots, does not allow for alternative viewpoints (non-science = heresy). It usually has to be one or another. Classical Chinese thought tended more to inclusion. Thesis A is true, and so is Thesis B," even when they seem to be contradictory. Its all about context.
Here is a question, which is more Yang, boiling water or boiling lead? Boiling water steams freely and boils away quickly, so it may seem more Yang. Boiling lead boils much hotter and is more transformed from its room temperature state as a solid, and in this way it may be seen as more Yang. So the real question is "in terms of what?"
When we consider manifestations of Shen we also have to consider "in terms of what?"
I truely believe that it is this fundamental difference in the approaches to information that cause so much confusion with the learning process of Taiji.
"The heart of the study of boxing is to have natural instinct resemble the dragon" Wang Xiangzai