Our mind is sharp and our spirit is keenly sensitive to disturbances in the spirit realm what does this means?

This is pretty simple. It means that you are smart as whip and that you hunger for need of being spiritually in contact with someone or something that's of a higher realm. Our need spiritualism is a very important part of our life. Without it life itself would be meaningless. The biggest majority believe in God, a certain percentage in Budha, The Hindu religion I'm not sure. It's in our nature to be sensitive to the spiritual realm, because it's a sign that you are on the right path if you're seeking it.