The Significance of Worship

In Gordon's book on page 56 it says, "Human creativity is a matter of imitating God the Creator; it may very well be the most significant thing humans do, so it is not "merely" anything, and it is surely not "merely a matter of taste". The worship of God is such a holy matter, something so different than anything else we do in our lives. Yet, we treat it as just another part of our weekly routine, and something that we can decide how we want it done. Why is it so difficult for believers to grasp the concept that worshipping God is not an ordinary or insignificant task?