Isn't it just a case of the human desire to find absolute knowledge?

I am, at this very time, contemplating the 'worth' of it all.
Life, and all its intricasies, is a thing that we cannot comprehend.

Spirit can be thought of as an energy.
The energy will, as with all energies, dwindle over time.

Think about this:
A person walks down a corridor twice a day, everyday, for many many years.

Would it not be reasonable to assume that the energy that person uses to walk down that corridor will be imparted into the floor and walls of that corridor?

The same consideration could be applied to a wood carving.
People often speak of feeling the spirit of the carver within the wood.

I know that my type is somewhat disjointed, but I have so many feelings and ideas about Life, the Universe, and Everything, that I often struggle to get my point across lol