Emotion is a strong human feeling, such as: love, hate, anger, etc. Temperament refers to the emotional part of someone's character, especially how likely they are to be happy, angry, etc. Emotions have great power and strength in someone's life; and they influence his words, actions, behaviour, and activities. God gave us emotions; but the devils works against the Purpose of God, in emotions, to make people have evil emotions like hatred. There are good emotions and temperaments, as well as bad and evil emotions and temperaments. We have to avoid and shun evil and sinful emotions and temperaments, and also put on the good emotions and temperaments under control. In this book, you will learn about the power, importance, nature, and ability of temperaments and emotions.