The topic of worship came up again as I studied John 4 (the woman at the well story) for seminary and came across this quote:
True and perfect worship consists in following in the steps of the Son of God; it consists in keeping the commandments and obeying the will of the Father to that degree that we advance from grace to grace until we are glorified in Christ as he is in his Father. It is far more than prayer and sermon and song. It is living and doing and obeying. It is emulating the life of the great Exemplar.
It comes from an excellent talk by Elder Bruce R. McConkie - How to Worship. If you read it, you can find out what cows and crocodiles have to do with worship. I love the list of concrete examples he gives because it helps me understand the subject better.
I have more thoughts, quotes and scriptures over here on this post.