Nah. What you're giving us is YOUR take on what spirit is. Team spirit is motivation. People are motivated by, for instance, reminding them that they belong to a tribe and that winning is glorious. Hearing that kind of pep talk starts a physical response--the body produces adrenaline to cope with the imminent physical challenge. Better the pep-talk, more pumped the athlete. Etc.

If spirit existed in a physical sense (no pun intended) you could buy it in a jar and rub it on like ointment.

Actually, Wolfgang, can you name for me even one scientific process that doesn't involve, at some point in the process, the perceptions of the scientist who is engaged in the process?

This is simply wrong. The whole point of scientific process is to examine without prejudice. Sure. tons of people have twisted results to meet perceptions, but they fool only themselves as science will always find them out.