Well, now, there's a different take on the matter.

I agree with Blake. Spirit is that which cannot be detected by the five physical senses. There are a whole lot of things those senses cannot detect. Body is, as he said, an aspect of spirit, and it can be detected by the five physical senses. Other physical things are also aspects of spirit that are detectable by the five senses.

Spirit is not only the source of physicality, it is the source of intelligence, thought, emotion, desire, energy, and all perceivable existence. It is also the source from which spring ideas...like the idea of "non-existence". It is quite easy for an embodied soul to come up with the idea that there is no soul, for example, but only the body. The five senses of the body will support that notion, because they can look no farther than physical phenomena.

A worm can also say to itself with absolute conviction: "There is nothing greater than being a worm. I am the ultimate form of life."