We often experience a thrill for various reasons. Spiritually, thrill is described as body sensing the action of Grace. A young man is selected in an interview. He is relieved of the tension he was so far in. A case is judged in one's favour. The client is pleased. A negotiation turns out to someone's expectation. He is satisfied. He understands how it concluded so. He sometimes knows the role his skill played. Relief is of the nerves, pleasure is a positive feeling of the nerves. Satisfaction is of the mind. Understanding is a mental process.