He who is slow to anger has great understanding, but he who is quick-tempered exalts folly. A tranquil heart is life to the body, but passion is rottenness to the bones.
A tranquil or peaceful heart reflects inner contentment, trust in God and emotional stability which affects our well being. But envy and jealousy is a self-centered bitter longing for what others have which can lead to emotional, spiritual and physical decay.
