The definition of faith is common knowledge, the effects of it may not be. There is a clamor for proof, with the possibility that faith would follow. Impossible. Proof leaves no room for faith. However with faith, proof may follow with great abundance.
What supports the value of a dollar, or the entire US economy for that matter? One of the most powerful forces there is: Faith
The psychological effects of faith are unknown, undefined but surely exist and with sufficient "density" may even be creative. Jesus says: As a man believeth in his heart, so shall it also be unto him.
I think faith is another crude attempt to bridge the gap between our mind and reality. It works on the assumption that the mind is the creator of existence...if you believe it hard enough.
>You are really making something very complicated that is very simple. Faith is simply the firm belief that you will get somewhere without knowing how to. That is all it is, nothing more ore less than that.