Many people shy away from the topic of prayer, but even modern medicine acknowledges the power of prayer. Many people have need of hope in times of illness and disease. Pray brings this comfort to each of them. Hospitals have long included a chapel for those that believe in prayer as a way of encouraging the power of prayer on behalf of another.
In other words, it does not matter to whom you pray, or if you do. What matters is that all of us respect each other. Kindness and consideration have never been a poor way of treating some one who may think differently than we believe.