A married couple live in an unchanging closeness of union, but are not always in conversation. They are husband and wife at all times, and every moment of every day is defined by their loving commitment to one another– but they don't constantly express this to one another. There are moments when the ordinary passage of the union is gathered up into special expressions of relationship. In the same way, our corporate worship is a specific engagement with the Lord above and beyond the daily relationship we enjoy with him.
That's a quote from an interesting article over at Dan Hames' blog. Click through to read the rest of it.