That only affects people's ability to convey the information. It doesn't change the fact that you can measure light because it exists, and you can't measure a soul because it doesn't.
Discussion
You can only measure what you can perceive.
Can a blind man perceive light?
Can a scared man perceive his soul?
Yes. The blind man can feel the heat of light on his skin - it's radiation coming from a star across 150 M km of empty space. It exists.
No. A scared man cannot perceive his soul because it isn't there. He will perceive several chemical signals produced by his brain and other organs as a response to whatever is making him scared. Because the chemicals are real, and so is his body.
I'm so sorry they teased you & convinced you that it was just your imagination.
I'm so sorry they stole this from you.