Those who have listened to music understand well the impact it can have on the mind and spirit. Positive, uplifting music can bring feelings of happiness and peace. The hymns of the Church are a key part of worship and invite the Spirit of the Lord. They can be especially helpful in controlling one's thoughts. In contrast, unwholesome, negative music can encourage inappropriate thoughts and behavior. As with other forms of media, Church members are encouraged to be careful in their choice of music.