The eyes are often called the windows to the soul. In my clinic, I see this age-old saying in a more practical way, especially when some patients meet me with steadiness and warmth in their gaze.
Clear presence or conscious awareness—the sense that the mind is settled—is called Shen (神) in traditional Chinese medicine (TCM). Classical Chinese physicians likened the Shen to an inner “mirror of life” that reflects everything happening within a person.