The goal of every minister is to get his, or her, message across to the congregation as effectively as possible. This is not only imperative for the church to be successful, but also imperative to each church goer's spiritual health. With the large size of many churches today, a good quality sound system has become essential for the spoken word to reach the audience to keep their attention. What is most often neglected is a quality lighting system that will help maintain this audio link and provide the best opportunity to pass the message to the audience.
Humans have many inherent physical weaknesses.
The human eye, when faced with inadequate lighting, will strain to view the object. This is true if the lighting is very dim or if the shadows on the presenter's face are unusual. To counteract the strain, the eye will automatically exercise the muscles by looking to another object. Once the eyes wander, the hearing will wander next, breaking all connection with the presenter. It is easy to understand how sound and sight are linked.