The word 'soul' or even 'spirit' has uses, as Wolfgang notes...but it is well to be careful how you declaim that they refer to actual mechanisms that operate independently of 'us'.

Or we independently of it

Just because you don't experience these things in a tangible sort of way doesn't mean that no one does. If one experiences something and another does not, does this mean that the experience is only imaginary? Does the existance of colors as a tangible physical phenomenon become questionable because a blind person can't percieve color? If you don't experience a thing, does this mean it doesn't exist in reality?

Going back to TBPL's comment about buying a jar of "spirit" and rubbing it on like an ointment...

It would be possible to buy a jar of air. Obviously you wouldn't be able to rub it on like an ointment. In fact, you wouldn't be able to determine whether or not the jar actually contained "air" just by looking. The only way to know if the jar contained air would be to observe effects that air has on other things, or to have an instrument or other means of detecting the presence of air.

It's no different with spiritual energy. The way you know it's there is to either observe its effects on things, or to have a sensory means of detecting its presence. If you don't have a means of detecting the presence of air, would you automatically determine that it doesn't exist? Perhaps you would. Conversely, if you lack the means of detecting the presence of spiritual energy, you might very well determine that it doesn't exist. But that wouldn't prove that it doesn't exist. It would only prove that you do not have the means to detect it.