When you meditate, what you actually do is to enter into a calm or still, silent mind. We have to be fully aware of the arrival and attack of thoughts. That is to say, we shall not allow any thought, divine or undivine, good or bad, to enter into our mind. Our mind should be absolutely silent. Then we have to go deep within; there we have to observe our real existence.
Music is a tool. Lighting is a tool. Power point is a tool. Getting those things right is not the goal. God is the goal. Those are just tools. And we can real easily turn into worshippers of all the tools, rather than remembering that this is simply a tool to get the job done which is to help connect people with God and to help inspire people.
We are all healers of each other. Look at David Spiegel's fascinating study of putting people together in a support group and seeking that some people in it live twice as long as other people who are not in a support group. I asked David what went on in those groups and he said that people just cared about each other. Nothing big, no deep psychological stuff-people just cared about each other. The reality is that healing happens between people.