I suggest the following definitions.
Spirits have no body, they exist only in the invisible world. Spirits are not directly visible, but we can observe their effects.
An idea that exists (grows, lives) in more than one human heart.
Spirits propagate (are shared) using a medium.
Something capable of storing and representing (symbolizing) a spirit.
A spirit that is formulated as a written text.
Every corporation is a shared idea, formulated by a legally binding definition.
Every religion is a shared idea formulated by its Holy Scripture
- unwritten law¶
A spirit that is not formulated as a written text.
It is obviously difficult to write about unwritten laws.
A thought about a concrete situation, an answer to a question, perceived by a human as coming from outside of his brain.
- divine inspiration¶