Jesus once said about a group of people “they know not what they worship” (John 4:22). I think this statement holds true for many people. So many don't really know the god, or even much about him, that they claim to worship. If a person doesn't know the god they are worshiping, how can they know what pleases him? Even greater than that, what is this god like? What is he not like? Can you even know him? These are questions that every worshiping person should ask. If these questions have no answers in the soul of the worshiper then worship will be completely arbitrary to the worshiper. At best, their worship will be unpleasing to their god. At worst, their god doesn't exist and it's all just a figment of their imagination.